Drilling rig parts supplier
Technical Specifications – Common Replacement Parts
Below are examples of parts we regularly supply. All dimensions are standard API or OEM equivalents.
Mud Pump Parts (for triplex pumps)
| Part Name | Common OEM Models | Material | Standard Sizes | API Spec |
|---|---|---|---|---|
| Liner | National, Ideco, Bomco, Wirth | Ni‑hard IV / Chrome‑iron | 4" to 7" ID | API 7K |
| Piston | Various | Fabricated steel + rubber | Fits 4"‑7" liners | API 7K |
| Piston rod | Forged 4140 | 4140 quenched & tempered | Lengths vary | API 7K |
| Valve & seat assembly | Standard API | Forged steel + Ni‑hard seat | 4"‑7" flow areas | API 7K |
| Fluid end module | National 8‑P‑80 / 12‑P‑160 | Forged steel (AISI 4130) | Various | API 7K |
| Packing & seals | Viton, NBR, HNBR | Per pump model | All sizes | – |
Drawworks & Brake Parts
| Part Name | Common Applications | Material | Lead Time (stock) | API Spec |
|---|---|---|---|---|
| Brake disc (hydraulic disc brake) | 1,000‑4,000 HP drawworks | Forged steel, heat‑treated | 1‑3 days | API 7K |
| Brake pads (set) | All disc brakes | Organic or sintered metallic | 1‑3 days | API 7K |
| Band brake lining (riveted) | Mechanical drawworks | Woven asbestos‑free | 3‑5 days | – |
| Drum (grooved) | Various | Cast steel or fabricated | 30‑45 days | API 7K |
| Clutch disc / drum | Pneumatic clutches | Friction material + steel | 15‑20 days | – |
Rotary System Parts
| Part Name | Size / Rating | Material | API Spec |
|---|---|---|---|
| Rotary table bushing | 17½", 20½", 27½" | Cast steel | API 7K |
| Master bushing | Same as table | Forged steel | API 7K |
| Rotary table bearing | Various | Chrome steel | – |
| Swivel main bearing | 150‑500 ton | Hardened steel | API 8C |
| Swivel packing (washpipe) | 2"‑4" ID | Brass / composite | – |
Block & Hook Parts
| Part Name | Capacity Range | Notes |
|---|---|---|
| Traveling block sheave | 300‑1,200 ton | Replaceable with sealed bearings |
| Hook latch kit | 150‑750 ton | Includes spring and latch |
| Hook roller bearing | All sizes | Standard or heavy‑duty |
Tables above are a small sample. We supply thousands of additional part numbers. Contact us with your equipment make, model, and part number.
Product Types – Complete Drilling Rig Parts Supplier Portfolio
As a full‑service drilling rig parts supplier, we cover these major categories:
-
Drawworks Components – Drums, shafts, gears, clutches, brakes (disc and band), sensors, PLC modules, hydraulic valves.
-
Mud Pump Parts – Liners, pistons, rods, valves, seats, fluid ends, pulsation dampeners, packing, gaskets.
-
Rotary System Parts – Rotary tables, bushings, swivels (complete or bearings/washpipe), top drive spares (as per specific models – call for list).
-
Hoisting Components – Traveling block sheaves, hook latch kits, deadline anchor load cells, crown block sheaves.
-
Mud System Components – Shaker screens, centrifuge bowls, degasser pumps, desander/desilter cones, agitator gearboxes.
-
BOP & Well Control Spares – Seals, rams, bonnets, indicator switches, hydraulic hoses.
-
Power & Control Parts – VFD drives, PLC cards, pressure transmitters, temperature sensors, joysticks.
-
Rig Consumables – Wireline (drilling line), packing, gaskets, O‑rings, filters, belts, hoses.
-
Fabricated Structural Parts – Mast pins, substructure bolts, walkway grating, handrails.
Applications – Where Our Parts Keep Rigs Running
Our drilling rig parts are used by:
-
Land drilling contractors – Emergency breakdown support for rigs in remote locations. We ship to desert, mountain, and Arctic sites.
-
Offshore platform operators – Offshore‑certified parts with material traceability. We supply to South China Sea, Middle East Gulf, and Southeast Asian platforms.
-
Rental fleets – High‑wear parts (brake pads, pump liners, shaker screens) for rigs that are constantly moving.
-
Well servicing companies – Parts for workover rigs and snubbing units.
-
Maintenance & repair shops – Overhaul kits for drawworks and mud pumps.
-
Drilling training centers – Cutaway models and functional parts for training rigs.
Why Choose SJ Petro as Your Drilling Rig Parts Supplier?
-
Sinopec manufacturing roots – We produce parts in the same API‑certified factory where we build complete rigs. No repackaged, unknown‑origin components.
-
Global stocking locations – We keep fast‑moving parts in Dubai (UAE), Singapore, and Houston (partner warehouse). Airfreight to most drilling hubs in 3‑5 days.
-
Engineer‑level technical support – Our team includes drawworks and mud pump specialists. We help you identify the correct replacement – no guessing.
-
OEM cross‑reference library – We supply parts for rigs from National Oilwell, Ideco, Bomco, Lanzhou, and many others. Send us your OEM part number.
-
API 7K, 8C, 5CT certification – Critical components come with full traceability and test reports. Third‑party inspection available.
-
Emergency manufacturing – For obsolete parts, we can reverse‑engineer from your sample or drawing. Typical turnaround: 10‑20 days for non‑complex parts.
-
Cost savings – 20‑40% below Western OEM prices for equivalent API‑certified quality.
-
12‑month warranty on all parts – If a part fails due to material or workmanship, we replace it. No hassle.
-
No minimum order quantity – One brake pad or a container load. We support small and large operators equally.
Frequently Asked Questions (FAQ)
Q1: What brands of drilling rigs do you supply parts for?
We specialize in parts for Chinese‑built rigs (SJ Petro, Honghua, Baoji, Lanzhou) and also supply compatible components for National Oilwell, Ideco, Bomco, Wirth, and many others. For non‑Chinese rigs, we may need a drawing or sample to confirm fit. We keep cross‑reference data for the most common part numbers.
Q2: Do you have API monogram on your parts?
For pressure‑containing components (fluid ends, valves, etc.), we can supply API monogrammed parts when you specify. For standard wear parts (liners, brake pads, seals), we provide material certifications and dimensional reports but may not hold the monogram. Contact us to discuss your requirements.
Q3: What is your typical lead time for a non‑stocked part?
If we do not have the part in our regional warehouses, we manufacture in China. Typical lead time: 15‑30 days for simple machined parts, 30‑45 days for complex assemblies (e.g., fluid end modules). Emergency rush service (10‑15 days) is available for an extra fee.
Q4: How do I verify that a part will fit my rig?
Send us your original part number, manufacturer name, and (if possible) a photo or drawing. Our engineers will cross‑reference to our catalog. For high‑value or safety‑critical parts, we recommend sending a sample to our China factory for exact replication.
Q5: Do you offer a warranty on replacement parts?
Yes – all parts are warranted for 12 months from shipment against defects in material and workmanship. Parts damaged by misuse or improper installation are not covered. We stand behind our quality.
Q6: Can you supply parts for very old or obsolete rigs?
Yes – this is a core strength. We can reverse‑engineer parts from your sample or dimensional sketch. Many customers come to us because the original manufacturer no longer supports their 20‑30 year old rigs.
Q7: What payment terms do you offer for spare parts?
For small orders (under $5,000), we accept wire transfer (T/T) or credit card via secure link. For larger orders, standard terms are 30% deposit, balance before shipment or 30 days from invoice for approved credit accounts.
Q8: Do you have a minimum order value?
No. We ship a single brake pad or a 50seal.However,forordersunder50seal.However,forordersunder100, we add a small handling fee to cover export documentation costs.
Q9: How can I get a part number cross‑reference or price?
Email export@sjpetro.com with:
-
Rig make and model
-
Original part number (if known)
-
Description of the part (include dimensions or photo if possible)
-
Quantity needed
We will respond within 24 hours with availability, cross‑reference to our part number, and price.
Q10: Do you offer consignment stock programs for large operators?
Yes. For drilling contractors with multiple rigs, we can stock critical parts in your local warehouse on a consignment basis. You pay only when you pull parts from stock. Contact our supply chain team to discuss.
