CASTINGS

We provide complete production of castings according to given drawing documentation from 1 kg up to 40.000 kg and length up to 12 m.

For the production of castings we use various types of model equipment:

1) classic wooden pattern for mass production
2) lightweight wooden pattern for small series production, where the cost is above all
3) polystyrene pattern for prototype production – our recommendation
4) steel and aluminum alloy models for special casting (V-process etc.)

List of commonly used materials:

1) gray cast iron – GG20 (422420), GG30 (422430), GG35 (422435) and others with addition of Cr and Cu for surface hardening
2) ductile iron – GGG50 (422305), GGG60 (422306), GGG70 (422307)
3) cast iron – GS-38 (422630), GS-45 (422640), GS-52 (422650), GS20Mn5 (422709), GS36Mn5 (422715), 35 CH GSL (422726) and others
4) copper-aluminum alloys – E-Cu57, Al-Si-10Mg and others

Casting accuracy:

grade 4-5 according to ČSN 014470 or GTB 17-20 according to DIN 1683

Heat treatment of castings:

1) annealing to eliminate internal stress
2) normalization annealing
3) quenching and tempering

Machining of castings:

1) Roughing with finishing allowance at customer’s site
2) final machining according to drawings

Tests before delivery of castings:

1) chemical analysis
2) mechanical tests
3) dimensional protocol
4) ultrasonic, capillary or magnetic surface test as required

FORGINGS

We provide complete production of forgings up to 15.000 kg and lengths up to 12 m according to given drawing documentation.

List of commonly used materials:

1) standard carbon steel
2) alloy steel
3) other special steels according to customer’s request

Heat treatment of castings:

1) annealing to eliminate internal stress
2) normalization annealing
3) quenching and tempering

Machining of forgings:

1) Roughing with finishing allowance at customer’s site
2) final machining according to drawings

Final inspection of forgings:

1) chemical analysis
2) mechanical tests
3) dimensional protocol
4) ultrasonic, capillary or magnetic surface test as required

GEARS

We provide complete production of gears and pinion according to customer’s drawings.

Types of gearing and production possibilities:

1) spur gearing (max. Diameter 5600mm, max. Tooth length 2000mm)
2) double spur gearing (max. Diameter 5600mm, max. Tooth length 2000mm)
3) bevel gearing (max. Diameter 2200mm)
4) internal toothing (max. Diameter 5600mm)
5) worm gear (max. Diameter 3600mm)
6) rack-and-pinion gearing (max. Module 30)

Output inspection of toothed parts:

1) 3D tooth control
2) chemical analysis of the material
3) mechanical tests
4) dimensional protocol
5) ultrasonic, capillary or magnetic surface test as required

WELDED CONSTRUCTIONS

We provide complete production of welded constructions up to 40.000 kg according to given drawing documentation and length up to 12 m.

List of commonly used materials:

1) ordinary structural steels
2) special steels for welding

Heat treatment of welded constructions:

1) annealing to eliminate internal stress
2) according to customer’s wish

Machining of welded contructions:

1) Roughing with finishing allowance at customer’s site
2) final machining according to drawings

Final inspection of welded constructions:

1) chemical analysis
2) mechanical tests
3) dimensional protocol
4) ultrasonic, capillary or magnetic surface test as required

SLEWING BEARINGS

In our offer you will also find special slewing bearings, which are used for various special applications in wind power plants, solar panels, radar, mining, metal machining, cranes, and others.

The slewing bearings are available in various designs:

1) without toothing
2) with internal toothing
3) with external teeth

Maximum dimensions of spherical roller bearings:

1) external diameter over teeth up to 5700 mm
2) diameter of internal teeth up to 5300 mm

Types of slewing bearings supplied:

1) Four-point ball bearings
2) single row
3) double row
4) with crossed rollers
5) special combination bearings

BALL SCREWS

For our customers we supply ball screws from a traditional Spanish manufacturer.

KŠ are suitable for machine tools, automatic production lines and other industrial applications.

Technical details:

1) KSS diameters from 20mm to 300mm with pitch from 5mm to 60mm
2) Rolled KS for applications with lower demands on accuracy (IT3 to IT5) but with favorable price
3) ground KS for high precision applications (IT1 to IT3)
4) different design of nuts (single / double nut, pre-stressed / non-pre-stressed, with / without flange,…)

GRANITE RULERS

We supply precise granite rulers and plates for our customers.

They are particularly suitable for aligning machine tools, clamping plates, etc.

Technical details:

1) accuracy class 00, 0, 1 or 2 (according to DIN 874)
2) dimensions and shape on customer’s request

HEIGHT ADJUSTABLE WASHERS

We supply height adjustable washers for our customers.

They are particularly suitable for aligning machine tools, clamping plates, etc.

Technical details:

1) body is made of cast iron or cast steel (for higher load)
2) different pad sizes (depending on load)
3) the inner parts of the pad are made of forgings
4) easy-to-make structural adjustments to the customer’s needs

contact

phone

+420 296 330 315

address

Radiová 1431/2a,
102 00 Praha 10 - Hostivař

CONTACT US 

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