Moulding of Plastic Products

One of the main our activities is moulding of plastic products by way of infusion. Depending on the size and complexity of a part, moulding machinery of various capacities is used for moulding different parts (see below).

Moulding of Plastic Products by way of Nitrogen Gas

In 2004, a system of moulding of parts by way of nitrogen gases was introduced, which has taken the production of the enterprise to new level of quality and efficiency.

This technology has given Stigma, UAB new possibilities:

To improve the quality of goods – due to this technology machines leave no marks of mass amalgamation and settlements, because smaller closing power can be used, thus use of moulding machinery with lesser capabilities becomes more efficient. Besides, parts are produced free of crevasses and depressions.

To lower product price – the time of moulding cycle is reduced and smaller amounts of raw material are used, because there is no longer need to join separate components to produce entire part, and there is possibility to produce entire parts outright, such as knobs, etc. This process also enables to make cycle of production of a part shorter. Besides, when smaller closing power is used, the use of moulding machinery with lesser capabilities becomes more efficient  

To design - due to this technology, it is possible to improve rigidity of product, to make desired number of edges, heads and other features, avoiding lesions, settlements of surface of parts, when moulding parts with edges of different thickness. This technology also enables to mould parts with cavities, avoiding use of mechanic marks.

The nitrogen equipment used in the enterprise is the following: DDIK 100-2.2 / 330 bar.

Raw material:

In the field of moulding of plastic products, a number of various plastic raw materials are used and Stigma UAB employs most of them:

Commonly used polymers: HDPE, LDPE, PP, PS

Technical polymers: ABS, ABS+PC, POM, PC, PA, PA+GF 

Most of moulding forms used in the enterprise are owned by the clients. Stigma, UAB is responsible for proper use, maintenance of the same, can perform minor repair, because competent specialists work in the bar of equipment and installation.

If the client has no shape of product moulding, we mediate in ordering the production of the same.

Equipment:

Type

Space between columns (mm.)

Form opening   width      (max, mm.)

Form fixing height (min, mm.)

Closure power (kN)

Cylinder capacity (gr.)

1. Italtech MSK1600wp10800

1800x1400

1600

400

16320

10800

2. GEK-1350

1300x1280 1300 500 13500 6697

3. Rovetta

1080×1080

1100

450

12500

6420

4. MIR 1050

1050×1050

1100

350

10500

6200

5. GEK/S 850B

1000×980

1200

350

8500

3937

6. Battenfeld 650

930×930

1000

450

6500

4500

7. GEK/S 450B    765x745

750 

 250  4500 1783 
8. Krauss Mafei KM 420-3000B

740x670

1000

400

4200

1388

9. FSC AE400 

710x710

800 

200 

4000

937 

10. GEK/S 250

570x570

560 

200 

2500 573

11. FCS HT250

555x555 550 160 2500 429
12. FCS HT150

460x460

550

130

1500

250

13. FCS HT150

460x460

550

130

1500

250

14. GEK-150

460x460 400 150 1500 240

15. Engel ES600

420×420

840

150

1250

251/71/71

16. Engel ES600

420×420

840

150

1250

251/71/71

17. Demag 100 

400x400

500

250

1000

157

18. GEK/S 80

420x420

320

110

800

118

19. GEK-80

350x325

320

110

800

103

20. DEMAG D-60

320×320

630

200

600

74

21. GEK-60

300×300 290 110 600 73

22. Netstal

 

 

 

600

60

23. Nitrogen equipment      DDIK 100  - 2,2/330  bar.