DTH Hammer Lubrication: Confirm the Oil and Lubricator Scope

Why the hammer needs an identifiable lubrication scope

Published 26 October 2026. This is technical procurement analysis of earlier manufacturer documents, not a launch announcement. Rockmore’s ROK and ROK T operation guide has a 2024 copyright imprint and a cover revision marked “3-4-2024”; the numeric date order is preserved here. Its English sections 3.1–3.3 address lubrication, contamination and corrosion. Those instructions concern the specified Rockmore hammer families. [1]

Halco’s Maintenance Manual, printed pages 6–7, discusses lubricant delivery through the air stream and the choice of oil and consumption for the conditions and hammer manufacturer’s recommendations. The reviewed document states no publication or revision date; its “2021/11” download folder is not used as a publication date. Both sources make lubrication a defined hammer requirement rather than an assumption based on the rig name. [2]

Identify the hammer before asking for oil

RigSpan recommends attaching the proposed hammer model, variant, data sheet and applicable manual reference to the equipment enquiry. If the hammer has not been selected, keep the lubricant and lubricator proposal provisional. Ask the supplier to identify the outstanding information required for confirmation.

Describe the expected ambient conditions and whether the approved drilling proposal involves water injection, foam or other additives. Ask the responsible supplier which of these conditions affects its lubricant recommendation and support-equipment scope. Do not use a nominal bit diameter or the rig’s hole range as a lubricant selection method.

Identify each lubricant by its intended task. A line for compressor service oil, thread compound or general workshop grease should not silently stand in for the hammer’s approved lubrication requirement. Request a written response for the actual hammer rather than inferring approval from a shared oil label.

Six lines for a usable support quotation

This is an original purchasing schedule. It requests supplier evidence and scope clarity; it supplies no lubricant grade, injection rate, operating adjustment or maintenance interval.

Confirm what the lubricator offer actually contains

Ask the supplier to identify the proposed lubricator or delivery arrangement, where it interfaces with the offered air system, and which connections and supporting components are included. Request the relevant drawings, equipment ratings and instructions for the actual offer. Do not assume that any lubricator pictured with a rig or compressor is part of the order.

Keep the compressor requirements schedule alongside this response. That guide covers pressure, delivered flow and the broader air package; the lubrication schedule adds the hammer-specific oil, delivery equipment and consumable questions. A pressure/flow match alone does not settle those items.

Ask who confirms the assembled package and provides equipment-specific commissioning and use instructions. This article does not describe how to connect, adjust, purge, service or test a pressurised system. Applicable manufacturer instructions and competent personnel govern that work.

Make initial consumables and clean handling visible

Request the lubricant’s technical information, safety data sheet, pack identification and proposed initial quantity. Ask which quantity is included, optional or buyer-supplied, and who confirms any local substitute before use. Keep an accepted product reference with the order; a generic line saying “oil supplied locally” leaves an approval question unresolved.

Rockmore identifies contamination as a cause of hammer and bit failure and stresses keeping connections clean and covered. [1] The procurement implication is to ask how supplied rods, hoses and connections are protected in packing and handover, and which protective items and storage instructions accompany the shipment. This is a delivery-evidence question, not a cleaning procedure.

Halco’s discussion includes ambient temperature and water injection. [2] Ask for a review of the accepted lubrication scope if the operating conditions or hammer change. No rate, temperature threshold, oil brand equivalence or universal change interval from either manual is adopted here.

Connect the support list to your DTH purchase

The YQD-115, YQD-165 and YQD-230 configurations below are catalogue routes for discussing drilling equipment. They do not establish a supplied Rockmore or Halco hammer, an included lubricator or approved oil. Ask for the actual rig, hammer, air system and support schedule.

Use the hammer and bit connection checklist to resolve tooling identity and the DTH equipment package for the overall purchase. Keep accepted lubricant and equipment references in the equipment records, supported by worksheets in the download library. The pre-shipment evidence guide helps define the documentation and packing checks.

RigSpan coordinates independent equipment sourcing and supplier clarification. References to the two manufacturers provide technical context; they do not imply affiliation, authorised service, product equivalence or an appointment. Lubrication requirements remain those of the actual offered hammer and support equipment.