| Serial number: | 7715562216 |
| Name: | Concrete delivery pump cylinder |
| Spec: | Model matching by pump |
| Memo: | SSG-3 |
| Class: | Concrete pump, pump wearing parts |
Chromium plating for cylinders applies techniques solely imported from Germany, with equipment, plating bath and additives all imported from Germany.
German techniques ensure a chromium tightness up to 300 mesh/ mm2 and a surface hardness of HV 900, while ordinary chromium plating gets a chromium tightness of only 60 mesh/mm2 and a hardness of HV 700. Difference in tightness is 5 times.
Thickness of chromium layer over cylinder is 0.25mm-0.32mm and when thickness exceeds 0.20mm, chromium layer requires special processing techniques, plating bath and equipment. Cylinders of this company combine super-thick chromium layer and special and reliable plating techniques, which can ultimately guarantee customer interest.
Product specifications:
| Cylinder diameter × length | Remarks |
| φ177.8×L | Form, length and dimensions of connection are optional. |
| φ180×L | |
| φ195×L | |
| φ200×L | |
| φ205×L | |
| φ215×L | |
| φ220×L | |
| φ225×L | |
| φ230×L | |
| φ280×L |
Comparison of major technological properties:
| Item | German chromium plating | Ordinary chromium plating |
| Tightness | 300 mesh/mm2 | 60 mesh/mm2 |
| Hardness | HV900 | HV700 |
| Thickness | 0.25～0.3mm | 0.2mm |
| Surface roughness | 0.2 | 0.4 |
| Service life | 30,000m3 | 20,000m3 |
