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Technological options

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Technical drawings design

Our technical team is ready to offer our customers technical support services such as: creation of 3D models, drawing of construction documentation (technical drawings), processing of accompanying documentation and spare parts catalogues.
Designers and engineers process the drawings and models in the following programs:
AutoCAD, Autodesk Inventor.

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→ Material preparation

Based on delivered technical documentation it is possible to process the required type of material by cutting, burning and sawing.
For burning of metal sheets the company uses the oxygen-acetylene (Telerex and Picorex) and plasma burning machines (technical parameters are in chart below).

Plasma cutting machines Number of burners Number of benches Bench dimensions (mm) Max. sheet thickness (mm)
UXDP 2000 1 1 2000 x 6000 70
UXDP 2000 1 1 2000 x 6000 6
OMNIMAT 5000 1 1 13000 x 3000 80
SPLR 12001.25 1 1 12000 x 2500 25
MG 12001.25 PB* 1 1 12000 x 2500 25
* The PLS 12001.25 PB model is equipped with a perpendicular burner for cutting sheets up to 25 mm thickness and a mechanical drill head for drilling holes up to 29 mm.
Oxygen - acetylene machines Number of burners Number of benches Bench dimensions (mm) Max. sheet thickness (mm)
Telerex 8 2 6000 x 10000 130
Pikorex (template cutting) 4 1 2000 x 6000 70
Shears Sheets are cut by table shears (mm) Max. width of the table (mm)
NTE 3100/10 10 3000
NTC 2500/4 4 2500
CNTA 2000/6 6 2000
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→ Forming

The press brakes (TRUBEND 800, CTO 400A, LODD 315, LO 200, LO 50. LODD 50) are able to generate pressure from 150 to 800 t, with a maximum length of pressed material up to 5000 mm, with bending radius of 200 mm. There is also the availability of sheet straightening machines (UBR 18x200, XRM 2000x12, XRM 3200x20), roll bending machines (XZMP 2000x12), pipe bending machines (XOTH 40, PKKT 1018/2) and thread rolling machines (GWR 80, UPW 12/5 x 70).

Forming machines Bench dimensions (mm) Constriction (mm)
Hydraulic press 3000 t CTU 3000 11000 x 10000 2200
Hydraulic press 800 t HPR 800 1600 x 2700 750
Double-stand press 250 t LKT 250 1575 x 1150 750
Double-stand press 500 t PKZZ 500 2000 x 1590 1500
Eccentric press 160 t LE160/35/5 1000 x 720 330
Eccentric press 100 t LEXN 100C 1000x 640 380
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→ Welding

Manual welding is provided by highly qualified workers using various welding equipments such as the MIG/MAG, TIG, CMT. GOLEM 1200 is used for submerged arc welding. Welding of rotated assemblies and booms is done in particular by welding robots IGM and OJ 10. Welding materials: Class S235 to S960 (Weldox 700, Hardox 400, Armox 500). Special types of steel (size 1 - 150 mm). PPS Group a.s. (joint stock company) holds the following welding certificates.

Welding equipment Current / A Shielding
Welding sources MIG/MAG 250 82% Ar, 18% CO2
Welding sources MIG/MAG 220 82% Ar, 18% CO2
Welding sources MIG/MAG pulse Do 400 82% Ar, 18% CO2
Welding sources CMT do 270 97,5%Ar, 1,8% CO2
Welding sources TIG do 315 100% Ar
Submerged arc welding so 1200 flux
Welding robot Do 400
Welding positioners 1000x 640 load capacity 10 t
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→ Mechanical machining

Mechanical machining of smaller assemblies and subassemblies are made with the use of lathes, drills, milling machines and grinders. For bigger welding construction, the company is equipped with the modern NC and CNC centres.

NC/CNC centres Dimension of work piece Bench dimensions
SHW - UFZ 15000 x 1200 x 2500 16000 x 1500
FFDQ 125 13000 x 1000 x 2000 14000 x 1250
FUQ 150 4500 x 1500 x 2500 2 3000 x 2000
FUQ 125 4000 x 1500 x 2000 2 2000 x 2000
Drills Diameter in mm Bench dimensions
Radial drill 25-100 850x780-2000x3000
Coordinate drilling machines 50-100 500x830-1000x1600
Horizontal boring machines 63-100 320x320-1250x1250
130-160 1100x1600-4000x2500
Milling machines Clamping surface Bench movement x, y, z
WRD 150 Q 10000x3000 15000x4000x1000x800
FSQ 100OR/A3 3000x1000 3000x1000x1600
Gantry milling machines Do 1250x3500 Do3200
Other milling machines 220x640,... average 71, modul
Grinders Circular diameter Distance between centres
Centre and centreless grinders 200-5000 360-1500
Bench dimensions (mm) Blade dimensions (mm)
Horizontal and vertical grinders 4000x1000-800x200 250-900
Grinders and polishing machines 80x100 do 400
Tool grinders
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→ Surface treatment

Depending on parameters of the products and client requirements there is done wet painting, especially by 2K colours:

1. In the chamber painting line with the tunnel pre-treatment, on the circular overhead conveyer, in the intermittent motion.
2. In the separate painting and drying box and multi-mode painting cabin, on the track cars and overhead groove, with the high-pressure pre-treatment of the surface.

Sand blasting
PPS Group a.s. (joint stock company) offers a complex surface treatment with sand blasting and painting processes. The company has an automatic sand blasting workplace, composed by sand blasting chamber HOLLAND MINERAAL and sand blasting robot BLASTMAN. The sand blasting production reaches around 225 m2/h at the operational pressure 8 bars and 19 mm blast tube. The robot sand blasting process can be programmed in advances or it is possible to program the robot for manual sand blasting (the robot loads into the memory the manual sand blasting procedure). It is also possible to use manual sand blasting without the robot.

Painting line
The pre-treatment of the surface (degrease +iron phosphate coating, rinse and drying) is realized in the tunnel line by a shower system with the products of Henkel.

The consequent painting and drying of the primer and final coat is done in the separate painting and drying boxes. The primer coat is applied by low-pressure HVLP equipment TRITON 308, final coat by high-pressure equipments 2K WAGNER TWIN KONTROL 35 70. The cycle time depends on the painting time, which is about 10 20 min, on 43 hangers. The painting products can have maximal dimensions of 4 x 1.8 x 1.35 m and weight up to 2 tons.

Separate painting and drying box
The pre-treatment of the surface (degrease +iron phosphate coating) is carried out by the high-pressure equipment RB- 30E and products of Henkel. The primer coat painting is realized by the semi-pressure spraying equipment KREMLIN 20.25, final coat by high-pressure equipments 2K WAGNER TWIN KONTROL 35-70. The products can have maximal dimensions of 14 x 4 x 2.5 m and weight up to 10 tons.

Multi-mode painting cabin
The pre-treatment of the surface (degrease +iron phosphate coating) is carried out by the high-pressure equipment RB- 30E and products of Henkel. A fully-automatic multi-mode painting cabin BLOWTHERM T1 provides the whole process of painting and drying. The dimensions of the painting cabin are 16 x 5 x 5 m and the track cars transport the parts. The primer coat painting is realized by the semi-pressure spraying equipment KREMLIN 20.25, final coat by high-pressure equipments 2K WAGNER TWIN KONTROL 35-70.

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