


Sandvik / Tamrock
302 947 28a PISTON
Rock Drill Spare Part
| Part Number | 302 947 28a |
| Description | PISTON |
| Brand | Sandvik (Tamrock) |
| Assembly | Mecahnism, Percussion |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
302 947 28a (also written 30294728a, 302-947-28a, or 302.947.28a) is a Sandvik piston spare part used in the Mecahnism, Percussion assembly of the Sandvik DX700. Verified compatible with 5 Sandvik machine models including DL421-15C, DL421-7C, DP1500i. Used in 10 drifter configurations (HL1000, HL1000PE, HL1500). 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: 30294728a, 302 947 28a, 302-947-28a.
Compatible machines
5
Drifter configurations
10
OEM cross-reference
302 947 28a
Reference image
Available
About Sandvik 302 947 28a PISTON
This piston is a key element of the Mecahnism, Percussion in the Sandvik DX700. It operates under extreme cyclic loading and high-pressure hydraulic conditions. Maintaining OEM-specification pistons ensures optimal percussion energy transfer and maximizes rock-breaking performance.
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
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.









