
Sandvik / Tamrock
550 830 66a Cylinder
DX700
| Part Number | 550 830 66a |
| Description | Cylinder |
| Brand | Sandvik (Tamrock) |
| Assembly | Fixed jaw retainer |
| Type | Drill Rig Spare Part |
Quick answer
550 830 66a (also written 55083066a, 550-830-66a, or 550.830.66a) is a Sandvik cylinder spare part used in the Fixed jaw retainer assembly of the Sandvik DX700. Verified compatible with 3 Sandvik machine models including DL421-15C, DL421-7C, DX700. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55083066a, 550 830 66a, 550-830-66a.
Compatible machines
3
OEM cross-reference
550 830 66a
About Sandvik 550 830 66a Cylinder
This hydraulic cylinder is a core actuator component in the Sandvik DX700, operating within the Fixed jaw retainer. It converts hydraulic fluid pressure into linear mechanical force for positioning, clamping, or feed operations essential to the drilling process.
This is an OEM-compatible aftermarket replacement part for the Sandvik DX700 (DX700). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
When should a hydraulic cylinder be rebuilt or replaced?
Rebuild or replace when you observe fluid leakage past seals, reduced force output, sluggish or inconsistent movement, visible scoring on the cylinder rod, or when the machine cannot maintain required feed pressure during drilling.










