Iron roughneck parts
Technical Specifications – Iron Roughneck Parts Range
The tables below present key specifications for our iron roughneck parts product range. All components are API 7K compliant and manufactured to OEM dimensional standards for seamless interchangeability.
Jaw Assembly & Pipe Gripping Dies
| Part Type | Compatible Models | Material | Hardness (HRC) | Typical Lifespan (hours) | OEM Cross‑Reference |
|---|---|---|---|---|---|
| Upper jaw die – standard tooth | NOV ST‑80 / Canrig / SLB | Hardened alloy steel | 52‑56 | 500‑800 | 30160381 |
| Lower jaw die – standard tooth | NOV ST‑80 / Canrig / SLB | Hardened alloy steel | 52‑56 | 500‑800 | 30160382 |
| Upper jaw die – aggressive profile | All 100k torque classes | Carbide‑tipped alloy | 58‑62 | 800‑1,200 | VAR‑100U |
| Jaw die – drill collar gripping | NOV / Canrig 120k‑160k | Special carbide insert | 60‑64 | 1,200‑2,000 | VAR‑DC‑8 |
| Jaw assembly – complete (set of 3) | NOV ST‑80 | Assembled steel | N/A | 2,000‑3,000 | 30160410 |
Spinner Rollers & Assemblies
| Part Type | Compatible Models | Roller Diameter (mm/in) | Bearing Type | Material | OEM Cross‑Reference |
|---|---|---|---|---|---|
| Spinner roller – standard | NOV ST‑80 | 76 / 3.0 | Sealed needle bearing | Wear‑resistant steel | 30160350 |
| Spinner roller – high wear | Canrig 85‑120 | 89 / 3.5 | Double sealed tapered roller | Carbide‑coated | VAR‑SW‑120 |
| Spinner roller shaft | All major models | Diameter varies | N/A | Hardened chrome steel | OEM cross available |
| Spinner motor complete | NOV / Canrig | N/A | N/A | Cast housing | OEM cross available |
Hydraulic Cylinders & Seal Kits
| Part Type | Compatible Models | Bore (mm/in) | Rod Diameter (mm/in) | Working Pressure (PSI/MPa) | Seal Kit OEM Cross |
|---|---|---|---|---|---|
| Main clamp cylinder | NOV ST‑80 | 100 / 4.0 | 56 / 2.2 | 3,000 / 20.7 | OEM‑SP‑ST80 |
| Torque cylinder – standard | NOV ST‑80 / Canrig | 125 / 5.0 | 70 / 2.8 | 3,000 / 20.7 | OEM‑TC‑ST80 |
| Torque cylinder – heavy duty | TZG‑160 / NOV | 150 / 6.0 | 85 / 3.3 | 3,500 / 24.1 | OEM‑TC‑HD |
| Positioning arm cylinder | All rail‑mounted | 80 / 3.2 | 45 / 1.8 | 2,500 / 17.2 | OEM‑PC‑STD |
| Slew drive cylinder | All pedestal models | 90 / 3.5 | 50 / 2.0 | 3,000 / 20.7 | OEM‑SD‑STD |
All cylinders come with complete seal kits. Rod chrome plating inspected to OEM thickness standards.
Hydraulic Manifold Components
| Part Type | Compatible Models | Port Size / Thread | Pressure Rating (PSI/MPa) | OEM Cross‑Reference |
|---|---|---|---|---|
| Cartridge valve – solenoid operated | NOV / Canrig / TSC | 1/2" NPT / SAE‑8 | 3,000 / 20.7 | OEM‑SV‑STD |
| Solenoid coil – 24V DC | Most hydraulic systems | DIN 43650 | N/A | OEM‑COIL‑24V |
| Pressure relief cartridge | All manifold blocks | 1/2" NPT | 3,500 / 24.1 | OEM‑PR‑STD |
| Logic cartridge valve | Advanced control systems | SAE‑10 | 3,000 / 20.7 | OEM‑LV‑10 |
Electrical & Control Components
| Part Type | Compatible Models | Output Type | Voltage (V) | OEM Cross‑Reference |
|---|---|---|---|---|
| Proximity sensor – jaw position | All automated models | PNP, NO | 10‑30 DC | SENS‑JAW‑01 |
| Pressure transducer – torque monitoring | NOV / Canrig / TSC | 4‑20 mA | 10‑30 DC | OEM‑PT‑3000 |
| Remote pendant – wireless control | Aftermarket upgrade | 2.4 GHz | 24 V | OEM‑PEND‑WL |
| PLC input module | Siemens / Allen‑Bradley | 16 DI | 24 V | OEM‑PLC‑16DI |
| Emergency stop button – waterproof | All rig floor applications | NC contact | 24 V | OEM‑E‑STOP |
Product Types – Iron Roughneck Parts & Maintenance Kits
We offer the following iron roughneck parts categories:
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Pipe Gripping Solutions – Upper dies, lower dies, jaw assemblies, carbide‑tipped inserts for abrasive pipe, drill collar gripping components.
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Spinner Systems – Complete spinner roller kits, individual rollers with sealed bearings, spinner motor repair parts, wear plates.
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Hydraulic Components – Clamp cylinders, torque cylinders, positioning arm cylinders, seal kits, cylinder rod repair kits, chrome re‑plating services.
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Manifold & Valve Components – Cartridge valves, solenoid coils, pressure relief valves, check valves, manifold rebuild kits, quick‑connect couplers.
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Electrical & Control Parts – Proximity sensors, pressure transducers, temperature sensors, control pendants (wired and wireless), PLC modules, wiring harnesses, emergency stop systems.
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Structural & Mounting Parts – Pivot bearings, rail‑mounting brackets, pedestal repair brackets, bushing kits, joint pins.
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Complete Preventive Maintenance Kits – Pre‑assembled kits tailored to your roughneck model. Each kit includes: full set of seals, upper and lower dies, spinner rollers, filter elements, hydraulic oil, and a detailed installation checklist.
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Exchange & Recertification Service – We accept your failed components (cylinders, motors, valve assemblies) and exchange them for refurbished OEM‑spec units, or recertify your existing components to API 7K standards with full documentation.
Applications – Where Our Iron Roughneck Parts Are Used
Our iron roughneck parts are deployed on drilling rigs of all sizes and types:
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Onshore land rigs – Conventional vertical wells, directional wells, and multi‑well pad drilling. Rugged construction for dusty, high‑temperature environments.
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Offshore platform rigs – Compact, high‑reliability components with marine corrosion protection. ATEX/IECEx certified electrical components available.
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Jackup rigs – Medium to deepwater drilling, where space is limited and reliability is critical.
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Workover rigs – Lighter‑duty roughneck applications for tubing replacement and well maintenance.
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Desert & Arctic drilling – Extreme temperature‑rated components: hydraulic seals rated from -45°C to +90°C, low‑temperature impact steel for structural parts.
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Rental fleet repair centers – Bulk supply of wear parts for high‑utilization rental units.
Why Choose SJ Petro as Your Iron Roughneck Parts Supplier?
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Sinopec‑backed precision manufacturing – As a direct subsidiary of Sinopec Oilfield Equipment Corporation, we operate with the engineering depth (314 R&D engineers) and manufacturing infrastructure (180,000+ m² campus) that independent parts suppliers cannot match. Our CNC machining centers, heat treatment furnaces, and CMM inspection labs are fully in‑house.
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100% interchangeability with OEM – All SJ Petro parts are engineered to match OEM dimensions precisely. Our thread gauges, bolt patterns, and seal grooves follow original equipment manufacturer standards, meaning our parts install without grinding, drilling, or shimming.
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API 7K certified & traceable – Every primary load‑bearing component (cylinders, torque motors, spinner assemblies) is manufactured under API 7K design and testing requirements with minimum 2.25:1 design safety factors. We provide full material certificates (EN 10204 3.1) with heat numbers and mechanical test results.
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Strategic stocking for fast delivery – We maintain an inventory of the most frequently requested spare parts—dies, seals, rollers, sensors—in our Dubai, Singapore, and Houston (agent) warehouses. Standard airfreight to most drilling hubs: 48‑72 hours.
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Complete interchangeability with major brands – Our parts are cross‑referenced and interchangeable with NOV (ST‑80 / ST‑120), CANRIG (85‑120 / 130‑150), SLB iron roughnecks, TSC, and Chinese brands including SJ Petro’s own TZG series.
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Preventive maintenance kits – Not just individual parts. We offer complete PM kits tailored to your roughneck model and operating hours, reducing your procurement workload and ensuring nothing is missed during scheduled maintenance.
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Exchange program reduces downtime – Send us your failed hydraulic cylinder or torque motor; we ship a refurbished, API‑certified exchange unit within 48 hours. Your downtime is measured in hours, not weeks.
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Competitive direct‑manufacturer pricing – No trading company markups. As an OEM manufacturer, we offer API‑certified parts at 20‑30% below Western brands for equivalent quality.
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24/7 technical support – Our roughneck specialist engineers are available by phone, email, or video call to help you identify the correct part number, troubleshoot failures, and advise on preventive maintenance intervals.
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Warranty – 12 months on all replacement parts (excluding consumable dies, which are warranted against workmanship defects only). Extended warranty up to 24 months available.
Frequently Asked Questions (FAQ)
Q1: How often should iron roughneck dies be replaced?
Die replacement depends on pipe condition and connection cycles. Under normal drilling conditions with average pipe wear, dies typically last 500‑800 hours of gripping operations. Visually inspect dies after every trip; if the gripping teeth are worn flat, the die should be replaced immediately. Running worn dies increases risk of pipe slippage during torque application.
Q2: Do your parts work with NOV ST‑80 and CANRIG iron roughnecks?
Yes. We maintain a comprehensive cross‑reference database covering the most common roughneck models from NOV (National Oilwell Varco), CANRIG, SLB, and TSC. Our parts are dimensionally identical to OEM, requiring no modifications for installation. Provide your roughneck model and serial number—we will confirm compatibility.
Q3: How do I know if a hydraulic seal is failing?
Visible signs include oil puddles under the cylinder, oil film on the cylinder rod beyond normal lubrication, slower than normal extension/retraction speed, and difficulty achieving full stroke or torque. For seal failures inside the cylinder, system pressure may remain correct but cylinder motion stalls or leaks internally. Our seal kits are supplied with detailed installation diagrams.
Q4: What is the typical lead time for iron roughneck parts?
Standard wear parts (dies, seals, rollers, sensors): 1‑3 days. Hydraulic cylinders and torque motors: 5‑7 days for exchange units, 2‑3 weeks for new builds. Custom parts (non‑standard sizes or proprietary designs): 4‑6 weeks. Emergency rush service (additional fee) available.
Q5: Can you manufacture parts for obsolete or discontinued roughneck models?
Yes. We maintain engineering drawings for many older models. If we do not have a drawing, we can reverse‑engineer from your sample in our metrology lab. Typically 2‑3 weeks from sample receipt to first article production.
Q6: Do you provide on‑site troubleshooting or repair services?
We can dispatch field technicians to your rig site for complex repairs (cylinder replacement, manifold rebuilds, control system calibration). Technicians hold BOSIET and HUET for offshore work. Field service rates are quoted per job.
Q7: What is an exchange program and how does it work?
You send us your failed hydraulic cylinder, torque motor, or valve assembly. We keep a stock of refurbished, API‑tested units. We ship a refurbished unit to you immediately, often on the same day we receive your call. You then return your failed unit within 30 days. Your downtime is reduced from 2‑4 weeks to 48 hours.
Q8: What documentation do you provide with each part?
Each part comes with: certificate of conformance, material certificate (EN 10204 3.1) showing heat number and chemical analysis, dimensional inspection report, and (for pressure‑containing parts) hydrostatic test certificate with actual test values.
Q9: How do I request a quote for iron roughneck parts?
Email irparts@sjpetro.com with:
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Roughneck manufacturer and model number
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OEM part number (if known) or component description
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Quantity needed
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Required delivery location
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Urgency level (standard/expedited/emergency)
We will respond with a price, lead time, and cross‑reference confirmation within 24 hours.
Q10: Do you offer bulk or consignment stocking for large fleets?
Yes. For drilling contractors with multiple rigs, we offer consignment stocking at your local warehouse. You pay only when you pull parts from stock. We monitor usage and replenish automatically. This service has a minimum annual commitment, but it eliminates emergency airfreight costs and reduces your inventory carrying costs.
