Drilling contractors and well-control equipment rental firms need machined components that hold pressure, resist abrasion and arrive before the rig moves. We produce drilling fluid handling parts, well-control manifolds, BOP trim components and drilling-tool specials per drawing from 50 pieces, with material traceability, hardness documentation and first articles in 7–15 days. One technical contact handles quoting, production and delivery questions from the first drawing through running supply.
| Drilling pump parts | Dual-metal liners, polyurethane pistons |
| Well-control manifold components | Alloy steel, tungsten carbide trim |
| Drilling-tool specials | 4145H Mod, per drawing |
| Batch range | 50–5,000 pcs |
| Tolerance scheme | ±0.005 mm, hardness documented |
| Documents | Material traceability, HT records |
Drilling fluid handling and well-control equipment consume machined components on a schedule set by the formation, not by the warehouse. Liners, pistons, valve assemblies, manifold trim and tool joints are wanted in batches from fifty pieces with hardness documentation that the rig crew can verify. When a component fails mid-section, the drilling program stops, and the cost of waiting is measured in rig spread rate rather than in the price of the part. A supplier who quotes within 48 hours and ships the first article in 7 to 15 days removes the bottleneck that local machine shops cannot.
We machine drilling-fluid handling parts, well-control manifold components and drilling-tool specials in alloy steels engineered for abrasion and impact, with heat treatment through audited partners and hardness values reported on every batch. Material certificates carry the heat number, and dimensional reports cover the fits you flag. First articles ship in 7–15 days, series orders deliver DDP in 5–8 days by air including customs clearance, and the specification is stored against your part number for repeat call-offs. Repeat orders reuse the stored specification without renegotiation, and the document pack repeats identically on every call-off so your files stay complete across programs and years.
| Component (IT / EN) | Typical material | Process | Typical batch |
|---|---|---|---|
| Mud pump liners (缸套) | Dual-metal / ceramic | Centrifugal casting + grinding | 50–2,000 |
| Mud pump pistons (活塞) | Polyurethane + steel | Machining + moulding | 100–5,000 |
| Pump valves & seats (阀体阀座) | Alloy steel + tungsten carbide | Turning + lapping | 100–5,000 |
| Manifold components (管汇件) | Alloy steel | Turning + milling | 50–2,000 |
| Tool joints & subs (接头) | 4145H Mod | Turning + threading | 50–1,000 |
| Stabiliser sleeves (稳定器套) | Alloy steel + carbide | Turning + brazing | 50–500 |
Heat treatment through audited partners with hardness documented; API 7K and 16A dimensions verified per drawing.
The standard flow: drawing review and quotation within 48 hours, first samples in 7–15 days, first article inspection and approval, then series production against the approved reference. Tooling, program revisions and inspection records are kept on file so that call-offs remain consistent with the approved first article.
Engineering changes — material substitutions, tolerance updates, plating or packaging changes — are handled as controlled changes against the same records.
DIN ISO 2768-mK applies as the default tolerance scheme for unspecified dimensions. EN 10204 3.1 inspection certificates are standard for metallic parts, First Article Inspection supports the approval step, and RoHS/REACH declarations are available where required. Plating, cleanliness and packaging requirements are confirmed per drawing.
Can you document hardness after heat treatment?
Yes. Heat treatment runs through audited partners, and hardness values are measured and reported on every batch alongside the material certificate. Typical reporting includes surface and core hardness, case depth where applicable, and the heat-treatment cycle reference, so your quality team can verify compliance without a separate lab run. Hardness values are reported as actual measured numbers, for example 28 to 32 HRC after treatment where specified.
What batch sizes do you accept?
From 50 pieces per item. Drilling components are consumables, so we quote tiered prices that step down sharply at 500 and 2,000 pieces, and we hold buffer stock on running items against your call-off schedule after the first approved batches. Quote in 48 hours, first articles in 7 to 15 days.
Can you match a worn part without a drawing?
Yes. Send the worn component; we measure it, reproduce the geometry, and deliver a dimensional report with the first article in 7 to 15 days. The specification is then stored against your part number, so repeat orders ship without a new engineering cycle, and emergency singles can be split-shipped ahead of the balance.
Do you supply complete assemblies or only machined parts?
We supply the machined components — liners, pistons, valves, manifold bodies, tool joints and specials — that your assembly team or rental pool fits into the final equipment. Surface treatment and heat treatment are coordinated through audited partners and documented in the same batch file, so your assembly line receives parts that are ready to install and test. Repair quantities from 1 piece are routine, and the dimensional report flags any wear-related deviation we measure.
Send your drawing — Sinbo Precision will review material, tolerance scheme and batch plan and return a quotation within 48 hours. Samples in 7–15 days.
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