Sandvik / Tamrock
551 610 91d Hydraulic Cylinder, Double-acting
DD421-60C
| Part Number | 551 610 91d |
| Description | Hydraulic Cylinder, Double-acting |
| Brand | Sandvik (Tamrock) |
| Assembly | Cylinder Assembly |
| Type | Drill Rig Spare Part |
Quick answer
551 610 91d (also written 55161091d, 551-610-91d, or 551.610.91d) is a Sandvik hydraulic cylinder, double-acting spare part used in the Cylinder Assembly assembly of the Sandvik DD421-60C. Verified compatible with 3 Sandvik machine models including DD421-60C, DD422i-60C, DT721. 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: 55161091d, 551 610 91d, 551-610-91d.
Compatible machines
3
OEM cross-reference
551 610 91d
About Sandvik 551 610 91d Hydraulic Cylinder, Double-acting
This hydraulic cylinder is a core actuator component in the Sandvik DD421-60C, operating within the Cylinder Assembly. 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 DD421-60C (DD421-60C). 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.
