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Ukraine, Cherkasy,
B. Vyshnevetskoho St., 85
 
0472 36-03-08
      45-12-75
oaspu@photopribor.ck.ua
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Production & Technical Facilities

The Research & Production Complex «Photopribor« applies a wide spectrum of technologies providing up-to-date and high-quality production of special-purpose, civilian articles and consumer goods.

The production infrastructure is as follows:

1. Machining production:

  • a milling section equipped with NC machines: machining of such parts as covers, levers, housings etc. with complicated profiles;
  • a turning section equipped with NC machines: machining of such parts as rotary bodies of any form with overall dimensions of up to Ø400х1000 mm;
  • a section for machining centers: machining of complicated case-type parts with overall dimensions of 600х600х600 mm;
  • a section of coordinate-boring machines;
  • finishing processing of case-type parts with overall dimensions of 60х600х600 mm along 3 axes with an accuracy of up to 0.002 mm;
  • a grinding section: circular grinding of hardened steel with maximum dimensions of Ø150х1000 mm;
  • flat grinding of parts with dimensions of up to 250х450 mm ;
  • gear grinding by run-in method by a 0.3-2.5 module with gears number not less than 8;
  • thread grinding: mechanical polishing of such parts as feed screws Ø5-100 mm, up to 500 mm long;
  • a tooth-cutting section: machining of cylindrical straight-toothed and spiral wheels with the module from 0.3 to 1.5;
  • a section of universal equipment: total machining of Ø1-500 mm parts, 300х600 mm plates;
  • horizontal boring section: machining of frame welding structures with weight of up to 300 kg and overall dimensions of 1000х1000х1500 mm under conditions of small-batch production.

The machining production also includes a casting section with output capacity of 36.5 t of aluminum castings per year to produce blanks by die casting and casting in sand mold. Die casting: max. blank weight is up to 2 kg; gravity dies casting - max. blank weight is up to 5 kg; casting in sand mold - max. blank weight is up to 60 kg. Max. overall dimensions: 1500х150х300 mm. Main materials – alloys АК7, АК9, АК12

2. Assembling

The following jobs are performed during assembly:

  • preliminary assembly of individual components with adjustment of backlashes, clearances, torques and alignment of individual elements;
  • folding of optical elements, turning and autocollimating centering of lenses to an accuracy of 0.005-0.01 mm;
  • alignment of units, assemblies, including laser control channels;
  • assembly, alignment and adjustment of optomechanical devices using sophisticated control-alignment outfit;
  • assembly of gyros, including application of electron-beam welding;
  • electrical mounting of electronic assemblies and units, their assembly and adjustment;
  • manufacture of special-purpose cables (cables with increased flexibility, with connectors sealing);
  • manufacture of coilers (transformers coils, toroidal transformers with the diameter of magnetic conductors equal to 5-100 mm);
  • testing and monitoring of night vision devices.

After final assembly and mounting, the products are subjected to 100% tests.

 

3. Optical Production

Description of manufactured products:

  • all types of lenses (convexo-convex, flat-convex, concavo-concave, flat-concave, menisci);
  • prisms (rectangular, pentagonal prisms, trippel-prisms, Dove prisms, roof prisms, polyhedral prisms, etc.);
  • plates (mirrors, light filters, protective glass);
  • reticles (manufactured by etching method).

Accuracy characteristics of optical parts

Lenses:
  • diameter: 5-250 mm;
  • thickness tolerance in the center: from ±0.01 to ±0.2 mm;
  • surface form accuracy: N=1-3 rings at the diameter of 100 mm;
  • tolerance for decentering: from 0.03 to 0.05 mm;
  • antireflection coatings: two- or five layers applied by a vacuum method.
Prisms:
  • overall dimensions: from 2 to 150 mm;
  • angles manufacture precision: up to 30 sec of arc.;
  • “roof“ angle manufacture accuracy: up to 1.5 sec of arc.;
  • pyramid shape: up to 30 sec of arc.
Plates:
  • Overall dimensions: up to 250 mm;
  • Wedging tolerance: up to 2 sec of arc.;
  • surface form accuracy: N=0.5 – 2 rings at the diameter of 100 mm;
  • coatings: mirror, multiplayer, based on zirconium and silicon oxide.
Reticles:
  • diameter: 10-100 mm;
  • minimum line width: 0.007 mm;
  • maximum line width: 0.2 mm;
  • accuracy between the elements: ±0.005 mm.
Optica

4. Galvanic and Lacquer Coatings Production

Galvanic coatings section

Maximum length of parts subject to coating: 1000 mm.

The following types of coating are applied:

  • zinc plating
  • nickel plating
  • chromium plating
  • phosphorus plating of steel
  • chemical oxidation of steel and its alloys
  • chemical oxidation of brass and copper alloys
  • chemical passivation of stainless steel
  • electric polishing of stainless steel
  • coating by tin-bismuth alloy
  • anode oxidation of aluminum alloys
  • anode oxidation of copper alloys
  • black nickel plating
  • copper coating

Painting Section

Painting is made with cold and hot drying enamel and lacquers.

 

5. Production for reprocessing of plastic and rubber

A wide range of parts of different complexity and shape are manufactured of plastic and rubber mixtures (bellows, collars, eye shields, etc.)

The following materials are reprocessed in the thermoplastic section: polystyrene and its co-polymers, polyethylene, polypropylene, polyamide and its co-polymers.

Minimum weight of the parts is 0.5 g, maximum weight of the parts is 1 kg

The following materials are reprocessed in the thermosetting plastic section: phenoplast, press-material

Minimum weight of the parts is 1 g, maximum weight of the parts is 2 kg

 

6. Environmental test section

test for humidity resistance (humidity and spray irrigation), heat endurance (heat cameras +40ºС, +50ºС), for heat and cold resistance (cameras with temperatures of +120ºС, -50ºС) & rarefaction (0.1 atm).

 

7. Frame-stamping production

The facilities of the frame-stamping production provide parts fabrication by methods of punching, deep drawing, hot forging and assembly by welding.

Maximum dimensions of stamped parts:

  • for drawing and molding operations: (250х500) mm.
  • for chipping: (400х500) mm.

Technological facilities provide a wide spectrum of technological operations: chopping, perforation, cutting, notching, flanging, leveling, drawing, squeezing in the stamp, etc.

The following operations are provided in the welding section:

  • welding of aluminum alloys, including microplasmous welding;
  • ferrous metals welding on semiautomatic machines;
  • ferrous metals welding on semiautomatic machines;
  • contact welding.
 

8. Tool Production

The tool production features a wade range of equipment to manufacture:

  • cold forming stamps=0.1-3mm, stamps dimensions=100х700х500 mm;
  • hot-forged stamps;
  • molds for casting parts made of non-ferrous alloys, for casting according to consumable patterns;
  • press-molds for the fabrication of thermoplastic, thermosetting plaster, rubber parts with the dimensions of 800х800х600 mm;
  • master plates, and turning, milling, control outfit;
  • all kinds of special-purpose tools, meters (drills, cutters, mills, gauges, plugs, clips, etc.);
  • press-molds for packing production, etc.;
  • control-alignment devices and non-standard equipment;
  • fabrication and repair of press-molds for the manufacture of gaskets for eggs, turf pots, bottle packing, etc.

The tool production includes a thermal section, where the following thermal processing jobs are performed: volumetric hardening, tempering and normalization of steel, stabilizing aging, hardening of tools in brines, cement hardening of steel, including stainless steel, tempering by high frequency current.

 

 

9. Elaboration of Design Documentation for Various Types of Tool Set

  • stamps;
  • press molds
  • cutting and measuring tools;
  • control and alignment outfit;
  • non-standard equipment;
  • outfit for machining and testing equipment.

10. Test Station

 
 
 
 
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