


Sandvik / Tamrock
550 952 82 PISTON guide ring
DD320-40
Available — Request Quote| Part Number | 550 952 82 |
| Description | PISTON guide ring |
| Brand | Sandvik (Tamrock) |
| Assembly | CYLINDER ASSEMBLY |
| Type | Drill Rig Spare Part |
Quick answer
550 952 82 (also written 55095282 or 550-952-82) is a Sandvik piston guide ring spare part used in the CYLINDER ASSEMBLY assembly of the Sandvik DD320-40. Verified compatible with 13 Sandvik machine models including DD320-40, DD321-40, DD321-40C. 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: 55095282, 550 952 82, 550-952-82.
Compatible machines
13
OEM cross-reference
550 952 82
About Sandvik 550 952 82 PISTON guide ring
A critical hydraulic component in the Sandvik DD320-40 percussion mechanism, this piston converts hydraulic pressure into the powerful impact force needed for rock breaking. Located in the CYLINDER ASSEMBLY, worn pistons cause reduced penetration rate, increased energy consumption, and decreased overall drilling efficiency.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD320-40 (DD320-40). 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
How does a worn piston affect drilling performance?
A worn piston reduces percussion energy transfer, decreasing penetration rate and increasing the time and energy required to drill each hole. This directly impacts productivity and operating costs in mining operations.




