HHW-R Series Ring & Open-End Spanner Wrenches
Engineering Overview & Structural Features
The HHW-R Series Ultra-Low Profile Ring & Open-End Spanner Hydraulic Torque Wrenches deliver 305 to 17,460 N·m (225 to 12,875 lbf·ft) across AF 19 mm to 120 mm (3/4" to 4-5/8"). Engineered specifically for limited-clearance bolting and severely obstructed pipeline flanges, enabling fast radial slip-over positioning on long protruding studs where conventional sockets cannot fit.
MODULAR RING & OPEN-END SPANNER ADAPTABILITY
Quick-change interchangeable ring and open-end spanner attachments allow flexible radial slip-over access to recessed stud bolts and obstructed pipe racks.
ULTRA-LOW CLEARANCE POWER ARCHITECTURE
Monolithic high-strength alloy power cylinder withstands cyclic 700 Bar (10,000 PSI) working pressure while maintaining an ultra-compact envelope for narrow access.
360° x 180° MULTI-AXIAL SWIVEL COUPLER
Dual-axis free-swiveling hydraulic manifold prevents hose kinking and enables unrestricted operator positioning in crowded piping structures.
HIGH-PRECISION REPEATABILITY (±3%)
Precision-machined ratchet drive with fine-pitch tooth profile ensures uniform torque output within ±3% accuracy, calibrated to ISO 9001 standards.
OEM Cross-Reference & Dimensional Interchangeability
HHW-R Series 700 bar low-profile hydraulic torque wrenches (346 to 18,165 N·m, S19 to S120 mm) featuring interchangeable ring and open-end spanner attachments for radial side-slip access over severely obstructed studs and confined pipe racks. 346 - 18,165 N·m / 19 - 120 mm Hex.
Enerpac®, SPX Flow®, Power Team®, Simplex®, Hytorc®, Holmatro® and other brand names are registered trademarks of their respective owners. HydraStark is an independent manufacturer and is not affiliated with, authorized or endorsed by these companies. OEM model numbers are listed for dimensional and specification reference only; please verify fit with our engineers before ordering.
WRENCH ARCHITECTURE
Interchangeable Ring & Open-End Spanner Hydraulic Torque Wrench
TORQUE OUTPUT RANGE
346 to 18,165 N·m (255 to 13,400 Ft-lbs)
HEX ACROSS-FLATS ENVELOPE
19 mm to 120 mm (3/4" to 4-5/8") Hex Nut Clearance
Real Product Details & Build Quality
Specifications
Model Number | Torque Range N·m | Torque Range (Imperial) Ft-lbs | Hex Across Flats mm | Drive Unit Wt kg | Dimensions (mm) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
A (Length) mm | B (Height) mm | C (Width) mm | D (Cylinder) mm | E (Throat Depth) mm | F (Pivot Center) mm | G (Reaction) mm | |||||
| HHW-R2 | 346 - 2,318 | 255 - 1,710 | 19 - 60 | 2.2 | 155 | 129 | 66 | 32 | As per A/F | 19.0 | 7.5 |
| HHW-R4 | 786 - 5,226 | 580 - 3,855 | 36 - 75 | 3.0 | 208 | 168 | 87 | 42 | As per A/F | 25.4 | 7.5 |
| HHW-R8 | 1,549 - 11,049 | 1,143 - 8,151 | 55 - 90 | 3.3 | 260 | 209 | 108 | 53 | As per A/F | 31.75 | 13.0 |
| HHW-R14 | 2,725 - 18,165 | 2,010 - 13,400 | 80 - 120 | 8.2 | 349 | 239 | 132 | 64 | As per A/F | 39.0 | 17.5 |
Required System Components
Frequently Asked Questions
Q1What are the key specifications of the HHW-R?
expand_more
What are the key specifications of the HHW-R?
Wrench Architecture: Interchangeable Ring & Open-End Spanner Hydraulic Torque Wrench; Torque Output Range: 346 to 18,165 N·m (255 to 13,400 Ft-lbs); Hex Across-Flats Envelope: 19 mm to 120 mm (3/4" to 4-5/8") Hex Nut Clearance; Working Pressure: 700 Bar (10,000 PSI) Continuous Bolting Rating; Torque Accuracy & Repeatability: ±3% Repeatable High-Precision Bolting Performance. Full specifications and dimensions are given in the specification table below.
Q2Which models are available in the HHW-R series?
expand_more
Which models are available in the HHW-R series?
The specification table lists 4 models: HHW-R2, HHW-R4, HHW-R8, HHW-R14. For non-standard requirements, please describe them in the inquiry form.
Q3How is the HHW-R tested before shipping?
expand_more
How is the HHW-R tested before shipping?
Each unit is tested at 125% of its rated pressure before shipping (700 Bar rated, 875 Bar test pressure).
Q4What are the lead time, warranty and shipping options for the HHW-R?
expand_more
What are the lead time, warranty and shipping options for the HHW-R?
Lead time is typically 2–3 business days when the model is in stock and 7–35 business days otherwise. Warranty is 12 months after receipt of goods. Shipping is available by sea freight, air freight or international express (DHL, FedEx, UPS). Send your requirements through the inquiry form for an exact quotation and delivery date.