Sandvik / Tamrock
551 811 12 Cylinder tube assembly
DI550
| Part Number | 551 811 12 |
| Description | Cylinder tube assembly |
| Brand | Sandvik (Tamrock) |
| Assembly | CYLINDER ASSEMBLY |
| Type | Drill Rig Spare Part |
Quick answer
551 811 12 (also written 55181112, 551-811-12, or 551.811.12) is a Sandvik cylinder tube assembly spare part used in the CYLINDER ASSEMBLY assembly of the Sandvik DI550. Verified compatible with 2 Sandvik machine models including DI550, LEOPARD DI550. 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: 55181112, 551 811 12, 551-811-12.
Compatible machines
2
OEM cross-reference
551 811 12
About Sandvik 551 811 12 Cylinder tube assembly
Engineered for the Sandvik DI550, this cylinder is part of the CYLINDER ASSEMBLY and provides precise hydraulic actuation under the heavy loads and harsh conditions of mining operations. Cylinder rebuild or replacement restores full force output and positional accuracy.
This is an OEM-compatible aftermarket replacement part for the Sandvik DI550 (DI550). 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.
