Sandvik / Tamrock
BG 004 884 03a PISTON
Rock Drill Spare Part
Available — Request Quote| Part Number | BG 004 884 03a |
| Description | PISTON |
| Brand | Sandvik (Tamrock) |
| Assembly | Mechanism, Percussion |
| Type | Rock Drill Spare Part |
Quick answer
BG 004 884 03a (also written BG00488403a or BG-004-884-03a) is a Sandvik piston spare part used in the Mechanism, Percussion assembly of the Sandvik DD321-40. Verified compatible with 5 Sandvik machine models including DD321-40, DD321-40C, DT621. Used in 3 drifter configurations (HLX5, RD520, RD525). 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: BG00488403a, BG 004 884 03a, BG-004-884-03a.
Compatible machines
5
Drifter configurations
3
OEM cross-reference
BG 004 884 03a
About Sandvik BG 004 884 03a PISTON
A critical hydraulic component in the Sandvik DD321-40 percussion mechanism, this piston converts hydraulic pressure into the powerful impact force needed for rock breaking. Located in the Mechanism, Percussion, 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 DD321-40 (DD321-40). 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.
