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Heavy duty iron roughneck

Technical Specifications – Heavy Duty Iron Roughneck Parameters

General Specifications – SJ Petro Iron Roughneck (API 7K Compliant)

Parameter	Standard Specification	Notes
API standard	API Spec 7K	Minimum 2.25:1 design safety factor
Pipe size range	2‑⅞″ – 8‑½″ (73–216 mm) drill pipe; up to 10″ drill collars	Adjustable jaws / interchangeable dies
Max. make‑up torque	60,000–135,000 ft·lbs (81,350–183,000 N·m)	Model‑dependent; heavy‑duty to 150,000 N·m
Max. break‑out torque	80,000–160,000 ft·lbs (108,000–217,000 N·m)	Model‑dependent
Spin torque	3,000–3,750 ft·lbs (4,070–5,080 N·m)	High‑torque spinning motor
Spin speed	80–100 rpm (5″ drill pipe)	Flow‑dependent
Torque rotation angle	40–45°	Torque wrench travel
Spinner thread compensation	±5 inches (±127 mm)	Accommodates upper pipe travel during spin‑in
Horizontal travel (effective)	72–96 inches (1,830–2,440 mm)	Retracted to extended
Horizontal reach	102–132 inches (2,590–3,350 mm)	From pivot point to well center
Vertical travel	Up to 36 inches (915 mm)	Elevation adjustment for varying stick‑up heights
Slew / rotation angle	±179° to 300°	Pedestal or rail‑mount dependent
Hydraulic pressure (min./max.)	2,500–3,050 psi (170–210 bar) / up to 3,500 psi (240 bar)	45–55 gpm (170–208 L/min) flow
Power source	Rig HPU (hydraulic power unit) or dedicated unit	Hydraulic pilot controls (electrical option available)
Control modes	Local control panel / Remote console / Wireless pendant	Sequence‑assisted automation available
Weight	11,000–14,330 lbs (5,000–6,500 kg)	Model‑dependent
Dimensions (stowed)	Height: 86–96 in (2,200–2,440 mm), Depth: 70–89 in (1,780–2,270 mm), Width: 48–56 in (1,220–1,420 mm)	Transport configuration
Ambient operating temperature	-20°C to +45°C (standard); -40°C to +45°C (Arctic option)	Cold‑hardened seals and fluids; up to +55°C for desert
Certifications	API 7K, API 8C (optional), API Q1, CE, ATEX	Third‑party inspection available

Iron Roughneck Product Types – SJ Petro Configuration Options

1. Heavy‑Duty Land Rig Iron Roughneck

Torque rating: 100,000 ft·lbs make‑up / 120,000 ft·lbs break‑out
Pipe range: 3‑½″ to 9‑¾″ drill pipe and drill collars
Mounting: Pedestal or floor‑mount socket with 300° rotation
Best for: ZJ50–ZJ90 land drilling rigs, deep and ultra‑deep wells

2. Compact Workover Rig Iron Roughneck

Torque rating: 60,000 ft·lbs make‑up / 80,000 ft·lbs break‑out
Pipe range: 2‑⅞″ to 8‑½″
Mounting: Articulated arm for limited‑space drill floors
Best for: XJ series workover rigs, shallow to medium wells

3. Offshore Platform Iron Roughneck

Torque rating: Up to 135,000 ft·lbs make‑up / 160,000 ft·lbs break‑out
Mounting: Rail‑mounted carriage system for multi‑well center service
Marine‑grade corrosion protection, explosion‑proof electricals
Best for: Jack‑up rigs, drillships, fixed platforms

4. Arctic‑Rated Iron Roughneck

Operating temperature: -40°F (-40°C) continuous, optional cold‑region kit available
Low‑temperature hydraulic seals, low‑pour‑point fluids, heated control enclosures
Impact‑tested steel for structural components
Best for: Siberian, Northern Canadian, Alaskan drilling campaigns

5. Fully Automated "One‑Button” Iron Roughneck

Sequence‑assisted automation: full make‑up / break‑out cycles with single command
Machine vision joint recognition for precise positioning (optional)
Torque data logging and export for quality assurance
Best for: Fully automated drill floors, remote drilling operations

6. Retrofit Iron Roughneck Kit

Designed to fit existing rigs without major structural modification
Includes mounting pedestal, hydraulic interface, control console
On‑site installation and crew training available

Application Fields – Where Heavy Duty Iron Roughnecks Deliver Maximum ROI

Land Drilling Rigs (ZJ Series, 1,500–9,000 m depth)

The iron roughneck is the workhorse of the modern drill floor. During tripping operations, it makes up and breaks out every connection between stands of drill pipe. Manual tong operations require two crew members per connection; an iron roughneck reduces that to a single remote operator. Over a deep well with thousands of connections, the time savings are substantial.

Workover and Well Servicing (XJ Series)

Workover operations—tubing changes, pump repairs, fishing—involve repeated connection cycles. An iron roughneck on a workover rig eliminates manual tong handling, reduces crew fatigue over long campaigns, and speeds up each tubing run.

Offshore Platforms, Jack‑Up Rigs & Drillships

Offshore daily rig rates are high—often exceeding $200,000 per day. Every minute saved in connection time matters. The iron roughneck's compact design fits within tight platform deck footprints, and rail‑mounted configurations allow the same unit to service multiple well centers from a single parked position.

Arctic & Remote Land Drilling

In extreme cold, manual tong operations become hazardous—gloved hands cannot safely grip tools, and steel surfaces are dangerously cold. Arctic‑rated iron roughnecks keep the crew in heated cabins while the machine handles all pipe connections. This technology is proven on SJ Petro low‑temperature drilling rigs delivered to Rosneft in Siberia.

Fully Automated Drill Floors (Reduced‑Crew Operations)

For operators moving toward remote or reduced‑crew operations, the iron roughneck is an essential component. Integrated with the rig's control system via Modbus TCP, PROFINET, or EtherNet‑IP, the roughneck executes full make‑up and break‑out sequences without manual intervention. One‑button automated operation, combined with machine vision joint recognition, allows a single driller to manage the entire tripping process from the cabin.

Why Choose SJ Petro for Iron Roughnecks?

Backed by Sinopec – Over 50 Years of Drilling Equipment Manufacturing

SJ PETROLEUM MACHINERY Co., Ltd. is a wholly‑owned subsidiary of Sinopec Oilfield Equipment Corporation, a China Critical Technological Equipment Nationalization Base and National Hi‑tech Enterprise. With over 200 product models across 12 series and a 5‑year warranty on select equipment, we deliver oilfield‑proven reliability.

API 7K Fully Certified – 2.25:1 Safety Factor

All SJ Petro iron roughnecks are designed, manufactured, and tested in accordance with API Spec 7K. They meet the rigorous industry requirements for design validation, material traceability, nondestructive testing, and quality management. Complete certification documentation—material test reports, dimensional inspection records, and certificates of conformance—is included with every shipment. Third‑party inspection by BV, SGS, DNV, or ABS is welcome at any stage of manufacturing.

Integration with SJ Petro Rig Control Systems – One Interface

Our iron roughnecks are designed to communicate directly with SJ Petro's PLC‑based control architecture—the same system that manages drawworks, top drive, mud pumps, and pipe handling automation. The driller controls the roughneck from the same HMI used for the rest of the rig. No separate control box. No additional learning curve.

National‑Level Low‑Temperature Testing Laboratory – Arctic Proven

We operate one of China's few national‑level low‑temperature impact testing laboratories, qualifying materials down to -60°C. For Arctic‑rated iron roughnecks, we test every critical component—steel forgings, seals, hydraulic cylinders—to ensure reliable operation at -45°C. This same laboratory has validated materials for the 11 low‑temperature drilling rigs delivered to Rosneft.

Global Export Track Record – 30+ Countries

SJ Petro equipment operates in over 30 countries, including Russia, Kazakhstan, the United States, Canada, the Middle East, and Southeast Asia. Our export team provides complete documentation for customs clearance and can supply GOST certification packages for Russian and Eurasian markets.

Complete Drill Floor Automation – Roughneck + Catwalk + Elevator + Slips

SJ Petro does not sell iron roughnecks in isolation. We manufacture the complete drill floor automation ecosystem: iron roughnecks, automatic power catwalks, hydraulic elevators, power slips, and integrated control HMIs. One manufacturer. One quality standard. One warranty. One service contact.

Frequently Asked Questions (FAQ)

Q1: What is the difference between an iron roughneck and manual tongs?

A: Manual tongs require two or more crew members to position separate tools—a spinning wrench and a torque tong—around the pipe. The operation is physically demanding, slow, and exposes crew to pinch points and high‑torque hazards. An iron roughneck integrates both spinning and torquing functions into a single hydraulically powered machine, operated remotely from a safe station. It is faster, safer, and delivers repeatable torque accuracy connection after connection.

Q2: Are SJ Petro iron roughnecks API 7K certified?

A: Yes. All SJ Petro iron roughnecks are designed, manufactured, and tested in accordance with API Spec 7K – Drilling and Well Servicing Equipment, incorporating a minimum 2.25:1 design safety factor. Complete certification documentation, including material test reports (MTRs), dimensional inspection records, and certificates of conformance, is included with every shipment.

Q3: What torque capacity do I need for my rig?

A: General guidance:

Workover rigs (XJ series) / shallow wells: 60,000 ft·lbs make‑up / 80,000 ft·lbs break‑out
Standard land rigs (ZJ40–ZJ50): 100,000 ft·lbs make‑up / 120,000 ft·lbs break‑out
Deep / heavy land rigs (ZJ70–ZJ90) and offshore rigs: Up to 135,000 ft·lbs make‑up / 160,000 ft·lbs break‑out

Contact our engineering team for a specific recommendation based on your BHA and expected downhole torque requirements.

Q4: What pipe sizes can a single iron roughneck handle?

A: SJ Petro iron roughnecks accommodate pipe ranges from 2‑⅞″ (73 mm) up to 9‑¾″ (248 mm) covering drill pipe, drill collars, casing, and bottom hole assemblies. Adjustable jaws and interchangeable dies allow the same unit to handle multiple diameters without time‑consuming changeovers.

Q5: Can the iron roughneck be controlled remotely?

A: Yes. SJ Petro iron roughnecks include hydraulic pilot‑operated controls (or an optional electrical version) and can be operated from a remote console or wireless pendant. The driller executes the entire make‑up or break‑out sequence from a safe station—no crew members near the well center during high‑torque operations. Advanced automation features include sequence‑assisted operation and torque data logging.

Q6: Do you offer Arctic‑rated iron roughnecks for extreme cold environments?

A: Yes. SJ Petro Arctic‑rated iron roughnecks are designed for continuous operation down to -40°F (-40°C). They include cold‑hardened hydraulic seals, low‑pour‑point fluids, heated control enclosures, and impact‑tested steel for structural components. These units are proven on SJ Petro low‑temperature drilling rigs operating in Siberian Arctic conditions for Rosneft.

Q7: What is the typical lead time for an iron roughneck order?

A: Lead time depends on model and customisation level:

Standard heavy‑duty land rig model (100,000 ft·lbs): 4–6 months
Offshore rail‑mounted or Arctic‑rated model: 6–8 months
Large fleet orders (5+ units): 8–10 months

Expedite options may be available—contact our sales team for current availability.

Q8: What is included in the API 7K certification package?

A: Every iron roughneck shipment includes: material test reports (mill certificates) for all forged and machined components, dimensional inspection records, NDT (magnetic particle and ultrasonic) inspection reports, hydraulic pressure test certificates, and a certificate of conformance to API Spec 7K. Third‑party witnessed testing is available at additional cost.

Q9: Can the iron roughneck be integrated with my existing rig control system?

A: Yes. SJ Petro iron roughnecks are designed for seamless integration with PLC‑based rig control systems using Modbus TCP, PROFINET, or EtherNet‑IP protocols. For SJ Petro drilling rigs, the roughneck is fully integrated into the same HMI used for drawworks, top drive, and mud pumps.

Q10: How do I request a quote for an SJ Petro iron roughneck?

A: Please provide the following information to our export sales team:

Required torque capacity (make‑up and break‑out in ft·lbs or N·m)
Rig type (ZJ series drilling rig or XJ series workover rig)
Pipe diameter range (minimum and maximum inches)
Environmental conditions (standard, Arctic -40°C, desert +55°C, offshore marine)
Mounting preference (pedestal, floor‑mount socket, rail‑mount, articulated arm)
Automation level (manual remote control or fully automated sequence‑assisted)
Quantity (number of units)