Description and main technical characteristics of the OF-55 milling machine

Machine passport 676. Widely versatile milling machine

This instruction manual “Multiple universal milling tool machine 676” contains information necessary both for the maintenance personnel of this machine and for the employee directly involved in working on this machine.
This manual is an electronic version in PDF format of the original paper version. This documentation contains the Passport and Manual (instructions) for the operation of the universal milling machine 676. Purpose and scope of the machine Unpacking and transportation of the machine

• Unpacking and Shipping Instructions
• Machine transportation diagram

Machine foundation, installation, installation

• Machine installation instructions
• Installation drawing

Preparing the machine for initial start-up Machine passport

• General information, basic data
• Main dimensions and seats
• Control layout diagram
• Specification of control handles
• Kinematic diagram of the machine
• Specification of gears and worm wheels, worms, screws, nuts, chain sprockets
• Kinematic diagram of control mechanisms and accessories
• Specification of gears, worms, worms, screws, nuts, sprockets, racks, controls and accessories......
• Main movement mechanism
• Feed mechanism and kinematic calculation of table and horizontal headstock feeds
• Bearing layout
• Specification of rolling bearings
• Operating characteristics of the machine
• List of accessories and tools

Description of the machine

• General layout of the machine
• Brief description of machine angles
• General types of nodes

Machine electrical equipment passport

• Schematic diagram
• Wiring diagram
• General view of electrical equipment placement
• Description of the electrical circuit of the machine
• Electrical equipment specification

Machine lubrication

• Machine lubrication diagram
• Specification for the machine lubrication scheme
• Specification of lubrication points of accessories
• Instructions for servicing the lubrication system

Initial start-up of the machine Setting up the machine

Machine Features

Here it is necessary to note the frame, the hollow base of which is considered a coolant tank. The upper part is used to install a gearbox capable of transmitting 12 speeds to the spindles. A feed box for the table is installed at the bottom of the frame; it communicates 12 different feeds to it. The electrical circuit of the machine for PF milling work is located in a specialized department.

The best coffee machines of 2022 - TOP 15 rating of the best coffee makers for home

The movement of the part, longitudinal and vertical, is carried out using a caliper. For manual movement, an OF 55 feed screw is used, if the movement is mechanical, a gearbox is used. The feed is changed using the handles, switching off is carried out using the end stops. When performing precise work, they use measuring tiles and a pointer, they are placed in specialized clamps. Over the years of production of the OF 55 milling machine, several upgrades have been made.

Convenience during work is achieved by using two spindles, and the vertical one can change the inclined angle. This is due to its location on the trunk, which extends. Ideal processing conditions for parts are achieved due to the ability to change spindle speeds over a wide range.

With frequent use, it is necessary to monitor the lubrication of the bearings; this information is provided by the lubrication card. Sometimes lubrication is required:

• immediate;
• crankcase;
• automatic.

The following advantages during operation can be emphasized:

• normal control;
• small sizes;
• vibration absorption by heavy Base;
• the ability to do chiselling.

Getting spare parts for OF 55 milling machines is not a problem. But its use in private households is difficult. Professionals, in their own articles, say that the model has excellent properties, but is quite complex and expensive.

If you find an error, please select a piece of text and press Ctrl+Enter.

OF-55, specialized tool milling machine, Vladimir, 1967

We are engaged in the purchase and sale of machine tools in Tashkent and the Tashkent region. The overwhelming majority of used tool machines in Tashkent come without documentation. That is why we decided to create a full-fledged archive of passports, where you could download the manual for milling tool machines (instructions, technical specifications, circuit and wiring diagrams, etc.).

When purchasing a used milling tool machine, you simply need to have the operating manual in paper form for future repair work. The tool machine manual will allow you to repair the machine faster and more productively.

Design

Drawing – Machine OF 55

Bed – consists of two parts: the pedestal and the bed itself. The pedestal is made hollow and serves to store coolant. The bed has a box-shaped section. At the top of the machine there is a gearbox that can transmit different numbers of revolutions to the machine spindles. At the bottom of the machine there is a feed box with up to 12 different modes, which are transmitted to the support and horizontal slide. At the very bottom, in a special niche, the electrical equipment of the machine is located. In the upper part of the bed, the spindle head moves along horizontal guides, and the caliper moves along the vertical guides of the bed. The electric motor driving the machine is mounted on the bracket at the rear of the frame.

Caliper – designed for longitudinal and vertical movement of parts. Parts can be moved either manually or mechanically. Manual movement is carried out by two handwheels. Mechanical movement is carried out from the feed box.

Horizontal spindle – located in the headstock body on rolling bearings.

Vertical spindle – the spindle head is a removable part of the machine. It is mounted on a special trunk, fixed in the upper guides of the headstock with two crackers. The design feature of the trunk will allow you to rotate the head of the vertical spindle by 45° in both directions.

This is interesting: Vertical milling machines - device, description, video

Warranty and repair

The factory warranty for this equipment is 1 year. The unit itself must undergo regular inspection and diagnostics, especially during prolonged and continuous operation. The most common breakdowns:

• drilling and driving on the table surface;
• the machine does not turn on;
• The network indicator does not work;
• spindle assembly bulkhead;
• collet wear;
• spindle cone wear;
• the center of the spindle is knocked down;
• the spindle does not rotate or rotates slowly;
• sudden interruption of work;
• release of the collet during operation.

During major and restoration repairs, the following work is carried out:

• disassembling the machine with washing and wiping all parts;
• replacement of bearings in electric motors;
• replacing drive belts;
• replacement of worn parts, gears, bearings;
• lubrication of all moving structural elements;
• Overhaul of cooling system pumps.

After repair, the machine must be checked at idle speed, noise, heating and processing accuracy must be checked. When checking the functionality of the machine, a test part is made.

The 6T12 cantilever milling machine refers to equipment that is designed to work with parts made of cast iron, steel, and various alloys. The unit is reliable and rigid, and is a continuation of similar units of the P series.

Used in single and serial production for various industries. The machine is unified and is capable of operating in three modes: automatic, jog and manual. The main advantage for industry is the high productivity and long service life of this equipment.

Design features of the machine

The main purpose of the machine is milling the surfaces of workpieces with cutters of various shapes. The machine is designed for installation of shaped, cylindrical and finger cutting tools.

To increase processing accuracy, the design provides two types of feed: vertical and longitudinal. In addition to the milling function, a corner table with a horizontal surface can be installed on a table with a vertical working plane. Increased functionality is possible by installing additional components - a dividing head, a part clamp, etc.

Design features of the machine:

• bed made of cast iron. It helps reduce vibration levels, improves processing quality and maintenance-free operation time;
• chiseling function. To implement it, you need to purchase an additional device;
• the presence of two spindles - horizontal and vertical. Each of them has a wide range of parameters - rotation speed, feed, etc.;
• classic arrangement of components and controls. This contributes to minimal training time for personnel to operate this machine.

Another feature of the equipment is the vertical spindle head assembly. It is located on a flexible trunk, which allows you to process workpieces in hard-to-reach places.

The machine is used in small-scale production and for completing workshops. However, its installation in enterprises with mass production is currently impractical due to its outdated design and the impossibility of modernization.

Advantages

The model in question has several advantages:

• The cast bed eliminates vibration from the working area, which ensures high-quality processing of parts.
• Slotting operations. After installing additional devices on the machine, you can perform chiselling.
• Small dimensions allow it to be installed in almost any room.
• Classic controls ensure quick mastery of the unit.

12 spindle speeds allow you to choose the most suitable maintenance mode.

Main characteristics

The designs of the OF-55, as well as its characteristics, are varied and are divided into several categories:

• Console machines are equipped with a support console on which the mechanism table is located.
• Non-cantilever units, where a surface is located on a static frame that can move longitudinally and transversely.
• Continuous rotation drum units.

Console vertical milling machine UNIVERSAL WM5036 with digital display

Features of the models

For a horizontal console modification, moving the console along the rack guides is one of the main movements. There is a table and a slide on it. The unit is equipped with a horizontal shaft and a retractable trunk.

The universal modification allows you to set the surface to the required angle.

The highly versatile machine is equipped with a spindle head that can rotate in two directions. This allows you to install the cutter at the required angle to the working area and the workpiece.

The OF 55 vertical milling machine is equipped with a vertical shaft installed in a rotating head attached to a stand.

Vertical milling machine OF 55

The cantileverless vertical design is designed for working with large workpieces. The area moves along a customizable bed. The spindle head moves along the orientation of the rack.

The horizontal console-less unit is also equipped with a table that runs along the guides of the frame and a spindle head that moves along the guides of the rack.

Longitudinal milling structures are used for processing large-sized workpieces. A crossbar on which the milling heads are mounted is fixed to the vertically positioned racks. During operation, the table moves along the orientation of the racks.

Rotary milling units are equipped with end mills, which are required for primary and finishing processing of workpieces. The table rotates continuously according to the bed settings. The spindle head runs along the guides of the rack.

On a drum-milling tool, the part is mounted on a drum, which performs rotational movements. The heads move along the aiming posts.

The installation passport contains a detailed description of each modification, tool and accessories included in the kit.

Advantages and disadvantages of equipment

The advantages of machines type 675P include:

• Good vibration absorption due to the massive cast iron bed, which guarantees high quality machining of parts.
• Wide range of sizes of processed parts (up to 80 cm in length and up to 25 cm in width).
• Expanded functionality (allows impact operations using the included head).
• Possibility of installation in tool shops and small workshops.
• Simple and intuitive controls.
• Extended range of rotation speeds of both spindles, which allows you to select the optimal processing mode.

The machine provides the possibility of using another spindle head mounted on a retractable trunk. This auxiliary unit is capable of rotating in both planes at angles of ±90 degrees.

The relative disadvantages of these models include insufficiently high reliability, as well as low productivity, which is why they are not suitable for large-scale production.

Purpose and description of the machine

The design and manufacture of the OF 55 model was carried out by a machine tool manufacturer in the city of Vladimir, which began its activities in 1935. His design bureau developed and launched into production in 1967 the OF 55 milling machine, the technical characteristics of which were at a high level and made it possible to produce high-precision products. This year can be considered the year of release. The model has not been produced for a long time, but its high quality allows them to still be used in enterprises.

Machine OF-55 in profile

Appearance of the OF-55 machine

OF-55 machine close up

This unit is a cantilever-milling type machine. It is highly versatile and designed to process parts with high precision. The milling machine model OF 55 can process workpieces with cutters of different configurations using two spindles. The unit can perform longitudinal and vertical mechanical feeds, in addition, transverse movement can be carried out manually.

All information about the purpose, installation, maintenance and operation of the product can be obtained by reading the operating manual for the OF 55 milling machine. The table shows selected technical characteristics:

A complete list of data, as well as a kinematic diagram with a description and delivery set for the OF 55 milling machine is given in the passport included in the manual. In the documentation you can find an electrical diagram and a map of OF 55 bearings, which will be required when servicing the equipment.

Deciphering the name of the machine is difficult due to the difference from the standard marking. Unlike mass-produced models, specialized units include letters in the abbreviation that are assigned by the manufacturer. The numbers indicate the main operational parameter, in our case the width of the table in centimeters.

Main structural elements

The description of the structural diagram of the machine implies the presence of a bed, which is necessary for attaching the work table and spindle head.

In this case, the following main nodes can be identified:

• two spindles;
• main and removable table;
• spindle head;
• gearbox;
• electrical components;
• caliper;
• bed;
• vertical head.

Gearbox of the 675P milling machine
The kinematics of the main units of the unit is carried out by feed and main movement chains. The first device transmits its energy to the following parts:

• sled - longitudinally;
• caliper – vertically;
• spindle head - transversely.

All movements made are carried out using an electric drive. All movements of nodes are carried out in a wide range, which ensures the following operations:

• sixteen feeds, which can be carried out at speeds ranging from 12.5 to 400 mm per minute;
• accelerated feeds – working speed of about 930 mm per minute.

Technical characteristics of the OF-55 milling machine

Bibliography:

Specialized milling machine OF-55. Operation and Maintenance Manual, 1967

Avrutin S.V. Fundamentals of Milling, 1962

Avrutin S.V. Milling, 1963

Acherkan N.S. Metal-cutting machines, Volume 1, 1965

Barbashov F.A. Milling business 1973, p.141

Barbashov F.A. Milling work (Vocational education), 1986

Blumberg V.A. Milling machine handbook, 1984

Grigoriev S.P. Practice of coordinate boring and milling work, 1980

Kopylov R.B. Working on milling machines, 1971

Kosovsky V.L. Handbook of a young milling operator, 1992, p. 180

Kuvshinsky V.V. Milling, 1977

Nichkov A.G. Milling machines (Machinist's Library), 1977

Pikus M.Yu. A mechanic's guide to repairing metal-cutting machines, 1987

Plotitsyn V.G. Calculations of settings and adjustments of milling machines, 1969

Plotitsyn V.G. Setting up milling machines, 1975

Ryabov S.A. Modern milling machines and their equipment, 2006

Skhirtladze A.G., Novikov V.Yu. Technological equipment for machine-building industries, 1980

Tepinkichiev V.K. Metal cutting machines, 1973

Chernov N.N. Metal cutting machines, 1988

Frenkel S.Sh. Handbook of a young milling operator (3rd ed.) (Vocational education), 1978

Related Links. Additional Information

• Milling machines: general information, classification, designation
• Comparative characteristics of cantilever milling machines of the 6N, 6M, 6R, 6T series
• Feed box for cantilever milling machines of the 6M series: 6M12P, 6M13P, 6M82, 6M83, 6M82Sh, 6M83Sh
• Feed box for console-milling machines of the 6P series: 6P12, 6P13, 6P82, 6P83, 6R82Sh, 6R83Sh Feed box for console-milling machines of the 6T series: 6T12, 6T13, 6T82, 6T83, 6T82Sh, 6T83Sh

Repair technology for milling machines Adjustment of milling machines Friction clutch. Friction shaft. Friction clutches in metal-cutting machines Automatic cycles of milling machines (6P12) Testing and checking metal-cutting machines for accuracy Directory of universal milling machines Manufacturers of metal-cutting machines in Russia Manufacturers of milling machines in Russia

Home About the company News Articles Price list Contacts Reference information Interesting video KPO woodworking machines Manufacturers

Milling equipment

The industry produces metal-cutting units, which are divided into nine groups. The sixth group includes machines that perform milling operations. They can machine surfaces, various grooves, grooves, gears, splines and much more. The instruction manual contains more information.

The machines are distinguished by their design features:

continuously operating; console; non-console.

According to the operations performed, the equipment can be divided into:

specialized; general purpose.

Each type has distinctive features, the description of which is contained in the product passport. All mechanisms are characterized by the movement of the cutter and feed, and the feed can relate to the workpiece or the cutter. The value of such a parameter as the size of the table also matters. To simplify the maintenance of the units, they are unified.

Sectional view of the OF-55 machine

The largest part of the equipment used is cantilever-milling models. The console, which provides a number of advantages during milling, reduces rigidity at the junction with the frame. To avoid this, increase the length of the console guides. For repair and tool areas, the production of widely universal machines has been established, their purpose is a small series or single production. The units have the ability to work with the part manually using a feed screw.

It should be remembered that the operating instructions must be carefully studied before starting work.

Characteristics of CNC Milling Machines

Milling machines are a whole group of equipment for processing various materials.

• Universal
• Horizontal milling console
• Widely versatile
• Vertical milling
• Consoleless
• With mobile portal
• Copying
• Rotary milling
• Drum milling

Each type of machine has its own specifics, used for specific tasks and materials. In theory, any type of machine can be equipped with a CNC system, but we will consider the most popular type of this equipment - portal. Portal CNC machines are three-, four- and five-axis, without an automatic tool change system; with linear, drum and carousel automatic tool changing system. Also, one of the important types of machine equipment is the type of table; it comes with a T-slot or a vacuum clamp.

Kinematic diagram of the universal milling machine FS-250

Kinematic diagram of the universal milling machine FS-250

Description of the kinematic diagram of the FS-250 milling machine

The machine is driven by a two-speed electric motor type 4AM100 S6/4Y3 with a power of N=1.8/2.1 kW and a rotation speed of 1000/1500 rpm.

The movement from the electric motor is transmitted by a V-belt transmission to the gearbox receiving shaft and then in two directions:

1. on horizontal and vertical spindle;
2. on the feed box and the support carrying the vertical table.

Different 12 values ​​of rotation speed of the horizontal and vertical spindles are obtained at the following gearbox positions:

1. 4-5-7-2-1-8-9-16 ⇨ 42/72 rpm
2. 3-6-7-2-1-8-9-16 ⇨ 112/170 rpm
3. 1-8-9-16 (gear clutches 2-3 meshed) ⇨ 213/310 rpm
4. 4-5-8-9-16 (gear clutches 7-8 meshed) ⇨ 310/4.80 rpm
5. 3-6-8-9-16 (gear clutches 7-8 meshed) ⇨ 745/1130 rpm
6. 2-7-8-9-16 (gear clutches 7-8 and 2-3 are meshed) ⇨ 1410/2150 rpm

The vertical spindle receives rotation from gears 16 of the horizontal spindle through gears 1 5, 14, 13. The movement to the feed box is carried out by a bushing-roller chain drive with a drive sprocket 47 sitting on the receiving shaft of the gearbox, and a receiving sprocket 46 of the input shaft of the feed box.

Various feeds “transmitted to the caliper and vertical table are obtained with the following positions of the gearbox gears:

1. 45-43-44-40-42-37-35-34-33-32-20-19(18) ⇨ 10/15 mm/min
2. 45-43-44-40-39-38-35-34-33-32-20-19(18) ⇨ 27/44 mm/min
3. 45-43-42-37-35-34-33-32-20-19(18) ⇨ 37/55 mm/min
4. 45-43-44-40-41-36-35-34-33-32-20-19(18) ⇨ 72/110 mm/min
5. 45-43-42-39-38-35-34-33-32-20-19(18) ⇨ 100/150 mm/min
6. 45-43-42-41-36-35-34-33-32-20-19(18) ⇨ 250/380 mm/min

When gear 18 is turned on, the feed direction changes.

The movement to the caliper is transmitted from the lead shaft to the lead screw 29 through gears 27-26 (in this case, the gear half-coupling 27 is engaged with the coupling half 48).

To move the caliper in the opposite direction, the movement from the drive roller is transmitted through gears 23-22-21 to the lead screw 29 (in this case, the gear half-coupling 23 is engaged with the coupling half 49).

Manual feeding of the vertical table is carried out by the caliper handwheel - handwheel 51, the headstock of the horizontal spindle - by handwheel 52.

The movement of the vertical spindle quill in the vertical head body is carried out with a special key and a square 53 roller - gear, which is meshed with the quill rack.

The feed mechanism is protected from damage by a ball-type safety device (gear half-coupling 34 and half-coupling 54) adjusted by a nut 55.

The safety clutch must ensure movement of the caliper with an installed horizontal table, loaded with a load of 800N, at an accelerated feed with alternately switched on working feeds of 10 and 380 mm/min.

Ensuring the reliability of the operation of the protective devices is determined by the fact that the safety clutch must operate when resistance to movement is created by a force of 50 N applied to the handle of the manual table feed handwheel in the vertical plane at a feed of 10 mm/min.

Accessories/Tools

• Adapter SK40/MK3
• ISO 40 threaded shank
• Rotating plate for HNCS 130V
• Chuck with collet ER 32, clamp ISO 40
• Set of collets ER32, 6 pieces
• Chuck with ER 40 collet, ISO 40 clamp
• Collet set ER40, 15 pieces
• Collet Chuck for ISO40 End Mills
• Lever clamp 100/M12
• Hydraulic machine vice HNCS 130V
• HS 125 hydraulic vice
• Indexing device / RT 160-320
• Combined milling insert Ø16 SK 40
• Combined milling insert Ø22 SK 40
• Combined milling insert Ø27 SK 40
• Combined milling insert Ø32 SK 40
• Combined milling insert Ø40 SK 40
• Coolant concentrate 5 l
• Vice with clamping system NZM 125
• MS 125 – Machine vice
• Mounting stand
• PMS 100 – Precision machine vice
• Adapter sleeve SK40 / SK30
• Tailstock / RT 200/250
• RT 200 – Rotary table
• Set of roughing end mills 10 pcs
• End mill set DIN 844 B
• RTS 250 – Universal rotary round table
• ST 250 — Rotary table
• Vibration-resistant mounts LK 55
• Set of set screws and nuts for T-slots 14/M12
• Set of optional components / ST 130
• Chuck with ER 40 collet, ISO 40 clamp
• Clamping tool set De Luxe 14/M12
• Set of stepped blocks
• ST 130 — Dividing head
• ADA/SK40
• NT - Universal dividing head
• Universal rotary table
• Roughing cylindrical end mill 63
• Accessory set ISO 40, 5 pcs.

Horizontal spindle and vertical head spindle

The versatility of the OF-55 machine is ensured by the ability to mount different heads - horizontal, standard vertical, high-speed vertical and grinding. All heads can be retracted back and forth along the support column to provide the required feed rate. The work table is attached to a flat vertical surface having T-shaped slots and providing for vertical and horizontal feeding. The rotation speed of the spindles is determined by the characteristics of the gearbox.

Main parameters:

• Distance from the end of the spindle to the table plane, mm – 105.
• Reach, mm – 100.
• The limits for adjusting the distance to a horizontal table are 25...312 mm.
• Spindle stroke in the following directions, mm: vertical – 290, longitudinal – 250, transverse – 150.
• Rotational speed of the horizontal spindle, min-1 – 42…1250.
• Rotational speed of the vertical spindle, min-1 – 56…2450.

The speed change is stepwise, by switching pairs of gears (a total of 12 speeds are available). The torque value can be changed by switching the rotation speed of the main drive motor.

Overall dimensions of the working space and location of controls

The movable work table is equipped with horizontal T-shaped fastening grooves designed for fixing workpieces using standard clamps.
The equipment is equipped with a parallel vice, which allows you to secure workpieces with the largest dimensions of 90x90 mm. Horizontal table dimensions:

• Total length, mm – 720.
• Length of the table for fixing the milled product, mm – 630.
• Total table width, mm – 298.
• The largest width of the milled product, mm – 260.
• Number of T-slots – 4.
• The distance between the axes of adjacent grooves, mm – 50.

Overall dimensions of the vertical table:

• Length, mm – 553.
• Width, mm – 195.
• The number of longitudinal T-shaped slots is 2.
• The distance between the axes of the T-shaped slots is 100.

The cross-section and profile of T-shaped slots comply with the technical requirements of GOST 1574-91.

OF-55 Purpose and scope of a universal milling machine

OF-55 is the first widely-universal high-precision tool milling machine developed and put into production in 1967 - an analogue of the German FP-1 milling machine.

The milling machine model OF-55 (OF55) is designed for milling parts with cylindrical, disk and shaped cutters using a horizontal spindle, and face, end and key cutters using a rotating vertical spindle, which, if necessary, can be rotated at an angle.

Design features and operating principle of the machine

The OF-55 machine has two mechanical feeds - vertical (movement of the support along the guides of the frame) and longitudinal (movement of the table along the guides of the support). Cross feed (spindle head movement) is manual.

Two-speed electric motor at 1000 rpm and 1500 rpm, power 1.6/2.3 kW 380 V.

The OF-55 machine has 12 rotation speeds of horizontal and vertical spindles and 12 table feeds in the vertical and longitudinal directions.

The workpiece can be mounted on a main table with a vertical work plane or on a corner table with a horizontal work plane. To process inclined surfaces, the part can be mounted on a universal table.

To process parts that require division, a round table or dividing head can be used.

The machine is supplied with a convenient tool cabinet, as well as a set of accessories and tools.

The technological capabilities of the OF-55 machine can be significantly expanded by using accessories and devices supplied for a special fee.

The machine can perform a number of milling and boring operations with high precision, which can be achieved if the machine is installed in a room with a constant temperature of 20±2°C and humidity of 65±5%, if there are no sources of heat or vibration near the machine. The machine can also perform drilling and reaming, chiselling, centering, counterbore, countersinking, reaming, boring.

The presence of two horizontal and rotary vertical spindles, as well as a large number of accessories for the machine, makes it highly versatile and convenient for working in tool shops of machine-building plants in the manufacture of fixtures, tools, relief dies and other products.

A wide range of spindle speeds and feeds, the presence of mechanical feeds and fast movements ensure economical processing of various parts in optimal conditions.

The machine is used in single and small-scale production in tool and mechanical shops of machine-building enterprises.

Machine accuracy class P.

OF-55 Advantages of using a universal milling machine:

• The massive cast iron bed absorbs vibrations and allows you to maintain the quality of the parts processed on the machine.
• Use of the machine in tool and machine shops with small-scale and individual production
• The ability to perform slotting operations has been implemented (if you purchase a slotting head for an additional fee)
• Convenient (intuitive), classic machine control
• The small dimensions of the machine allow it to be placed in almost any room, including the garage
• A wide range of rotation of horizontal and vertical spindles allows you to select the most suitable cutting modes
• Coolant supply is carried out by an electric pump. Electric pump capacity 22 l/min
• The machine has an additional spindle (vertical) head located on a retractable trunk, which can be rotated at an angle of ±90 degrees in two mutually perpendicular planes.

FS-250 Analogs of a universal milling machine

• FSM-250/676M - Vladimir machine tool VSZ, Vladimir
• OMM64S, OMM67S – “Mikron”, Odessa
• VM130 - Votkinsk Machine-Building Plant, Votkinsk
• DF-6725 – Dmitrov Milling Machine Plant, Dmitrov
• VZ-371 – VISAS, Vitebsk, Belarus
• 676, 67K25PM, 67K25PF1, 67K25PF2-0 - Irkutsk Machine Tool Plant, Irkutsk
• 6T80 – Chita Machine Tool Plant, Chita
• 675P, 6725PF1, 67E25PF1 - Yerevan Milling Machine Plant, Yerevan, Armenia
• 676P, 67K25PR, 67K25PF1, 67K25PF2-0 - Vilnius Machine Tool Building Vilnius (today Vingriai, JSC Vingriai, Lithuania
• X8132 – Shandong Rooy Manufacture Co., Ltd., China

Reviews

The widely-universal milling machine OF-55 has long gained popularity at enterprises in the mechanical engineering industry. This equipment, according to the owners, is distinguished by its reliability, wide functionality, as well as the accuracy and quality of processing workpieces made of ferrous and non-ferrous metal. Also, all owners note the classic version of controlling this machine, which allows even a beginner to quickly master it. The machine itself was made according to a German analogue, but has been in demand at domestic enterprises for more than 30 years and is one of the most reliable and proven equipment.

The highly versatile OF-55 machine is considered one of the most proven types of equipment. An increased class of accuracy and expanded functionality make it possible to perform a number of specific operations on such equipment, including chiselling.