What WREN does

WREN (Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd. / 杭州雷恩液压设备制造有限公司), founded in 1996 and headquartered at Linping District, Hangzhou, is a privately held Chinese manufacturer specializing in ultra-high pressure hydraulic tools operating in the 70–350 MPa range. Its core portfolio spans hydraulic torque wrenches (square-drive, low-profile, and hollow-piston variants), hydraulic and electric/pneumatic torque wrench pumps, bolt tensioners including subsea models, hydraulic cylinders, hydraulic pullers, and calibration/test equipment. The company integrates digital and connected features — servo motor electronic torque control with ±3% accuracy, Bluetooth-enabled smart sockets, explosion-proof intelligent pumps (EXDⅡBT4 / IP55) with MES connectivity, and 7-inch industrial LCD interfaces — and holds 39 patents and 15 intelligent manufacturing certifications, with annual R&D investment exceeding 5M yuan.

The company serves primarily heavy-industry B2B customers in wind energy (including offshore), steel/metallurgy, and petrochemical/oil & gas, with secondary verticals in shipbuilding, power generation, railway (including sleeper manufacturing), and rubber. Named blue-chip customers include Vestas, Envision Energy, Yunda Wind Power, CGN, Baosteel, Magang, WISCO, Hengli Petrochemical, Yangzi Petrochemical, Zhenhai Transfar, Dalian Petrochemical, and Lanzhou Petrochemical. Revenue is generated through direct enterprise sales and project-driven relationships; pricing is quote-based and not publicly disclosed. WREN maintains a global footprint via sustained participation in major industry exhibitions (CIPPE Beijing, CWP, PTC Asia, IPA Indonesia, Xinjiang Petrochemical, Karamay Oil) and exports to Europe, the Middle East, and Southeast Asia. Marketing and lead generation rely on these trade shows, a bilingual corporate website (wrenchina.com), and WeChat/Douyin content distribution. Manufacturing is concentrated at a ~26,000 m² Hangzhou production facility supported by 260+ employees, R&D collaborations with four Chinese universities, and university-linked research institutes.

Name

WREN

Legal name

Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd.

Website

https://wrenchina.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

101–250 employees

Short description

WREN is a privately held Chinese manufacturer of ultra-high pressure hydraulic tools (70–350 MPa), including torque wrenches, bolt tensioners, pumps, cylinders, and pullers, serving wind energy, steel, and petrochemical heavy-industry enterprises worldwide through direct sales and trade-show channels.

Ownership category

akta.pro rank

Product category

Industrial Hydraulic Tools and Bolt Fastening Equipment

NAICS

Fluid Power Pump and Motor Manufacturing (333996), Fluid Power Cylinder and Actuator Manufacturing (333995), Power-Driven Handtool Manufacturing (333991)

SIC

Pumps & Pumping Equipment (3561), Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Hydraulic Components (Pumps, Motors, Cylinders) (IMAHAGAA)

akta.pro secondary industries

Hydraulic Power Units & Systems (HPUs, Manifolds, Integrated Circuits) (IMAHAGAB), Proportional & Servo Hydraulics (Electrohydraulic Valves, Servo Systems) (IMAHAGAF)

Keywords

• Ultra-high pressure hydraulic tools
• Hydraulic torque wrenches
• Bolt tensioning equipment
• Hydraulic bolt fastening
• Industrial hydraulic pumps

Headquarters

HQ city

Linping

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Hydraulic Tools and Equipment Sales: WREN generates revenue primarily through the manufacture and sale of ultra-high pressure hydraulic tools including hydraulic torque wrenches, electric/pneumatic torque wrenches, hydraulic pumps, bolt tensioners, hydraulic cylinders, and hydraulic pullers. Products are sold directly to large industrial enterprises in wind energy, steel, petrochemical, and other sectors. The company also offers custom-designed and tailored equipment for specific industrial applications.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

WREN designs and manufactures ultra-high pressure hydraulic tools (70-350 MPa) for industrial bolt pre-tightening applications. The company produces a comprehensive product portfolio including hydraulic torque wrenches, hydraulic bolt tensioners, electric and pneumatic torque wrenches, hydraulic pumps, hydraulic cylinders, and hydraulic pullers. Products are sold primarily to large industrial enterprises in wind energy, steel, petrochemical, shipbuilding, power generation, and railway sectors.

Product overview

WREN is a specialized manufacturer of ultra-high pressure hydraulic tools (70-350 MPa) with over 30 years of experience. The company offers a comprehensive portfolio of bolt fastening equipment including hydraulic torque wrenches (IBT, LOW, S, ATW C, ATWH, AVANTI, H series), hydraulic torque wrench pumps (LP3 electric, LP3N pneumatic, KLW4030EXII explosion-proof, KLW4230 smart, DHP dual-speed), bolt tensioners (HSR, HTE, WST subsea series), tensioner pumps (HLP3 electric, HLP3N pneumatic, HMP-ZN smart), electric/pneumatic torque wrenches (E-MED servo motor, WED CX battery, V-MED AC, WPD pneumatic), hydraulic cylinders (RSM, RCS, RC, RCH, RRH, RR, CLS, CLL, CLR, CLRG, CLP, SMC series), hydraulic pullers (LA vehicle-mounted, HP integrated), calibration equipment (TYS series test benches), and customized solutions (torque multipliers, air balancers, sleeper stress release machines, lifting tooling). The intelligent product line includes Bluetooth-enabled digital sockets, smart explosion-proof pumps with MES connectivity, and servo-controlled electric torque wrenches. Products are widely applied in steel, shipbuilding, power generation, petroleum, chemical, wind energy, and railway industries.

Differentiator

Problem solved

Functional benefit

Products and services

• IBT Series Square Drive Hydraulic Torque Wrench
• LOW Series Low Profile Hollow Hydraulic Torque Wrench Low-profile hollow hydraulic torque wrench designed for confined spaces, with torque range 232-44,593 N·m and nut sizes 19-175mm. For industrial maintenance in tight working conditions.
• ATWH Series Hollow Hydraulic Torque Wrench Hollow hydraulic torque wrench with extended torque range 113-101,622 N·m for large bolt applications in heavy industry.
• HLP3 Series Electric Ultra-High Pressure Tensioner Pump Electric ultra-high pressure pump for bolt tensioners with 5.5L usable oil capacity and 2000-3000 bar maximum output pressure. Provides hydraulic power for bolt tensioning operations.
• HSR Series Spring Return Bolt Tensioner Automatic spring-return hydraulic bolt tensioner for M20-M145 bolts with maximum pulling force 160-7,068 kN. Used for precise bolt pre-loading in industrial applications.
• HTE Series Multi-Stage Bolt Tensioner Multi-stage cylinder automatic-return bolt tensioner for M24-M64 bolts with 307-2,350 kN pulling force. For high-capacity bolt pre-loading applications.
• WST Series Subsea Bolt Tensioner Subsea bolt tensioner made of high-strength stainless steel with special anti-corrosion coating, designed for offshore wind power bolt maintenance with M20-M90 bolt capacity. Withstands harsh salt-fog and high-humidity conditions.
• KLW4230EXII Series Intelligent Explosion-Proof Torque Pump Smart explosion-proof hydraulic torque wrench pump with explosion-proof grade EXDⅡBT4, IP55 protection, featuring 7-inch industrial color LCD screen, torque data display, pressure curve display, bolt tightening stop detection, project-based data classification storage, and MES system connectivity. Designed for hazardous petrochemical environments.
• E-MED Series Servo Motor Electric Torque Wrench Servo motor electric torque wrench achieving electronic precision control with torque accuracy ±3%, repeatability ±2%. Uses patented gearbox design and can improve fastening efficiency by 300% compared to traditional hydraulic wrenches. Features Bluetooth connectivity for automatic calibration data import. Torque range 700-15,000 N·m.
• WED CX Series Electric Torque Wrench Electric torque wrench with more efficient and stable motor, updated control system, digital display for preset torque, auto-stop at set torque, torque error within ±5%, repeatability ±2%. Features stronger battery life with dual batteries and one charger.
• LP3 Series Hydraulic Torque Wrench Electric Pump Electric pump for hydraulic torque wrenches with 70 MPa working pressure, three-stage flow (7-1.6-0.8 L/min) and integrated heat dissipation system for continuous operation.
• DHP Series Dual-Speed High-Flow Hydraulic Pump Dual-speed high-flow hydraulic pump with integrated three-stage flow, pressure-start capability, dual motor operation for maximum efficiency. Available in 220V and 380V variants.
• CLRG Series Double-Acting Heavy-Duty Hydraulic Cylinder Double-acting heavy-duty hydraulic cylinder designed for extreme load conditions, ranging from 50 tons to 1,000 tons capacity. Features built-in relief valve for safety, chrome-plated piston rod with coating thickness ≥0.05mm, and composite coating for corrosion resistance.
• LA Series Fully Automatic Vehicle-Mounted Three-Jaw Hydraulic Puller Fully automated three-jaw hydraulic puller with hydraulic drive for automatic pulling operation. Features one-button operation, 50%+ efficiency improvement over manual pullers, adjustable claw angles for different diameter parts. For heavy-duty applications like train wheel disassembly.
• HMP-ZN Series Smart High Pressure Hydraulic Pump Intelligent high-pressure hydraulic pump for tensioner applications, with digital control and data recording capabilities.
• TYS Series Calibration Equipment Complete line of calibration equipment including tensioner test benches (TYS21, TYS20), torque wrench calibration instruments (TYS30, TYS10, TYS11), and portable calibrators (TYS02, TYS31) for verifying accuracy of hydraulic and electric torque tools.
• Hydraulic Sleeper Stress Release Machine Customized hydraulic equipment for railroad sleeper stress release. Uses hydraulic torque wrench to loosen sleeper mold nuts, steadily releasing rebar prestress in a safe, stable manner. Improves sleeper production qualification rate. Single stress release takes 15-30 minutes.
• 83x Torque Multiplier Torque multiplier that amplifies input torque by 83x (181 N·m input produces up to 15,023 N·m output with ±5% torque error), designed for narrow space applications.
• WREN Air Balancer Pneumatic tool that converts air pressure energy into mechanical linear reciprocating motion for lifting heavy objects. Rated pressure 0.49 MPa, maximum load 600 kg, maximum stroke 400 mm. Features adjustable pressure valve for free suspension of mounted objects.

Quantifiable outcome

• E-MED servo motor electric torque wrench improves fastening efficiency by 300% compared to traditional hydraulic wrenches, with torque accuracy of ±3% and repeatability of ±2%
• +6 more outcomes

Named customers13 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability2 records

Feature11 records

Partnerships

Four partnerships are on record, tiered core.

• Zhejiang University High-End Equipment Research Institute (浙江大学高端装备研究院)coreStrategic or Co-development PartnerWREN collaborates with Zhejiang University High-End Equipment Research Institute for platform-based technology R&D, focusing on high-stability intelligent hydraulic wrench design, intelligent ultra-high pressure hydraulic power devices, and related research areas.
• China Jiliang University (中国计量大学)coreStrategic or Co-development PartnerWREN collaborates with China Jiliang University on precision measurement and intelligent control technology research for hydraulic bolt fastening equipment.
• University of Electronic Science and Technology of China (中国电子科技大学)coreStrategic or Co-development PartnerWREN collaborates with University of Electronic Science and Technology of China on electronic control, sensor technology, and IoT integration for intelligent hydraulic equipment.
• Zhejiang Institute of Mechanical & Electrical Engineering (浙江机电研究院)coreStrategic or Co-development PartnerWREN collaborates with Zhejiang Institute of Mechanical & Electrical Engineering on mechanical design, manufacturing process optimization, and mechanical automation technology.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• TorcUP: Manufacturer of hydraulic and pneumatic torque wrenches, bolt tensioners, and pumps serving oil & gas, wind, and heavy industry — direct competitor with overlapping product lines and target customers.
• ITH Bolting Technology: German specialist in bolt-tensioning solutions for wind energy, power generation, and oil & gas — directly comparable product line to WREN's HSR/HTE/WST tensioner families.
• Enerpac Tool Group: US-based global leader in high-pressure hydraulic tools, including hydraulic torque wrenches, bolt tensioners, and pumps — directly overlapping WREN's core product portfolio and serving similar wind, oil & gas, and industrial maintenance customers.
• Hydratight (Birmingham Fastener): Global specialist in bolt tensioning, torque wrenches, and on-site machining for oil & gas, power, and heavy industry; directly comparable in bolting solutions and target customer verticals.
• Hytorc: US-based specialist in industrial hydraulic torque wrenches and bolt tensioning equipment; a pure-play in the exact category where WREN competes, with global industrial service reach.

Broad incumbents

• STAUFF: German manufacturer of hydraulic components and accessories including clamping/tensioning equipment; adjacent competitor in industrial bolt-fastening applications with broader hydraulics portfolio.
• Parker Hannifin: Global motion-and-control incumbent with hydraulic pumps, cylinders, valves, and tightening systems; competes broadly with WREN's hydraulic tool and component offerings across heavy industry.
• Atlas Copco: Global industrial-tools incumbent with broad portfolio including assembly tools, torque wrenches, and hydraulic equipment; competes with WREN in heavy-industry assembly and maintenance but as part of a much wider portfolio.
• Bosch Rexroth: German hydraulics giant manufacturing hydraulic pumps, cylinders, valves, and tightening systems; broader hydraulics portfolio overlaps with WREN's pumps, cylinders, and torque tools across industrial customers.

Regional players

• Power-Tec (Shenzhen Power-Tec): China-based domestic competitor in hydraulic torque wrenches and bolt-tensioning equipment; competes directly with WREN on Chinese heavy-industry customers but with less international reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hangzhou-wren-hydraulic-equipment-manufacturing-co-ltd

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about WREN