HDCHA Series Lightweight Aluminum D/A Hollow
Engineering Overview & Structural Features
The HDCHA Series Lightweight Aluminum Double-Acting Hollow Cylinders deliver high-tonnage tensioning, pulling, and rod-stressing performance with exceptional job-site mobility, forged from ultra-high-yield 7075-T6 aerospace aluminum alloy to achieve over 50% weight reduction and shorter collapsed height compared to single-acting hollow models. Operating at 700 Bar (10,000 PSI) with capacities from 30 to 150 Metric Tons, every cylinder features a central through-hole design, powered hydraulic retraction for fast cycling regardless of hose lengths, an independent floating center tube, full hard-coat anodizing, a built-in safety relief valve, and a removable 6mm protective steel base plate.
POWERED RETRACTION & BUILT-IN SAFETY VALVE
Double-acting hydraulic retraction ensures rapid, controlled plunger return regardless of hose lengths or system backpressure. A factory built-in relief valve prevents accidental over-pressurization of the retract chamber.
HOLLOW PLUNGER & FLOATING CENTER TUBE
Precision through-hole bore allows both push and pull forces for post-tensioning tendons, tie rods, and cable stays. An independent floating center tube eliminates rod deflection stresses to dramatically extend seal and cylinder service life.
STEEL BASE DEFENSE & HOLLOW SADDLE
Factory-fitted with a removable 6mm hardened steel base protection plate and bolt-on hollow hardened steel saddle to protect lightweight aluminum components from job-site point-load indentation and substrate abrasion.
COMPOSITE BEARINGS & HARD-COAT ANODIZING
Full-surface Hard-Coat anodized shell prevents galling and corrosion. Reinforced composite guide bearings absorb eccentric sideload forces, paired with an integral stop ring that withstands full rated cylinder capacity.
Optional Threaded Saddles (HP Series)
| Saddle Model | Cylinder Model | Diam. A (mm) | Thread B (in) | Protrusion C (in) |
|---|---|---|---|---|
| HP3015 | HDCHA-30 Series | 63 | 1¼"-7 un | 9 |
| HP5016 | HDCHA-60 Series | 91 | 1⅝"-5½ un | 12 |
| HP10016 | HDCHA-100 Series | 126 | 2½"-8 un | 13 |
* Internal threaded saddles thread directly into the hollow plunger crown to couple threaded tensioning rods and structural strands.
Steel Plate Mounting Holes (Including 6mm Plate Thickness)
| Cylinder Model | Bolt Circle U (mm) | Thread V | Depth Z (mm) |
|---|---|---|---|
| HDCHA-30 (30 Ton) | 110 | M6 | 12 |
| HDCHA-60 (60 Ton) | 160 | M6 | 12 |
| HDCHA-100 (100 Ton) | 200 | M10 | 12 |
| HDCHA-150 (150 Ton) | 250 | M10 | 12 |
* Standard 6mm hardened steel base plate shields lightweight aluminum cylinder foundations from abrasive site gouging.
OEM Cross-Reference & Dimensional Interchangeability
Double-acting hydraulic-return lightweight aluminum hollow plunger cylinders rated for 700 Bar (10,000 PSI), engineered for powered retraction, post-tensioning, and heavy cable pulling across 30 to 150 Ton capacities. 30 - 150 Ton / 50 - 250 mm Stroke.
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.
CAPACITY RANGE
30 - 150 Metric Ton (Advance) / 21 - 105 Metric Ton (Retract)
CENTER HOLE DIAMETER
33.5 - 79.0 mm Hollow Core
STROKE RANGE
50 - 250 mm
Real Product Details & Build Quality
Specifications
Model | Capacity Ton(kN) | Stroke mm | Push Force (Advance) kN | Pull Force (Retract) kN | Adv. Eff. Area cm2 | Ret. Eff. Area cm2 | Adv. Oil Cap cm3 | Ret. Oil Cap cm3 | Closed Height (A) mm | Extended Height (B) mm | Outside Diam. (D) mm | Bore Diam. (E) mm | Plunger Diam. (F) mm | Base to Advance Port (H) mm | Top to Return Port (I) mm | Saddle Diam. (J) mm | Saddle Protrusion (K) mm | Plunger Internal Thread (O) | Thread Length (P) mm | Center Hole Diam. (Y) mm | Weight Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HDCHA-302 | 30 | 50 | 359 | 187 | 51.2 | 26.7 | 256 | 134 | 209 | 259 | 135 | 95 | 75 | 22 | 64 | 63 | 10 | 1-13/16"-16UN | 23 | 34 | 8.9 |
| HDCHA-306 | 30 | 150 | 359 | 187 | 51.2 | 26.7 | 769 | 401 | 309 | 459 | 135 | 95 | 75 | 22 | 64 | 63 | 10 | 1-13/16"-16UN | 23 | 34 | 11.9 |
| HDCHA-3010 | 30 | 250 | 359 | 187 | 51.2 | 26.7 | 1281 | 668 | 409 | 659 | 135 | 95 | 75 | 22 | 64 | 63 | 10 | 1-13/16"-16UN | 23 | 34 | 14.9 |
| HDCHA-602 | 60 | 50 | 595 | 264 | 84.9 | 37.7 | 425 | 189 | 246 | 296 | 180 | 130 | 110 | 48 | 83 | 92 | 13 | 2-3/4"-16UN | 20 | 54 | 16.8 |
| HDCHA-606 | 60 | 150 | 595 | 264 | 84.9 | 37.7 | 1274 | 566 | 346 | 496 | 180 | 130 | 110 | 48 | 83 | 92 | 13 | 2-3/4"-16UN | 20 | 54 | 22.2 |
| HDCHA-6010 | 60 | 250 | 595 | 264 | 84.9 | 37.7 | 2124 | 943 | 446 | 696 | 180 | 130 | 110 | 48 | 83 | 92 | 13 | 2-3/4"-16UN | 20 | 54 | 27.6 |
| HDCHA-1002 | 100 | 50 | 1001 | 568 | 142.9 | 81.1 | 715 | 405 | 254 | 304 | 235 | 165 | 130 | 61 | 78 | 126 | 13.5 | 4"-16UN | 27 | 79 | 28.9 |
| HDCHA-1006 | 100 | 150 | 1001 | 568 | 142.9 | 81.1 | 2144 | 1216 | 354 | 504 | 235 | 165 | 130 | 61 | 78 | 126 | 13.5 | 4"-16UN | 27 | 79 | 38.3 |
| HDCHA-10010 | 100 | 250 | 1001 | 568 | 142.9 | 81.1 | 3574 | 2027 | 454 | 704 | 235 | 165 | 130 | 61 | 78 | 126 | 13.5 | 4"-16UN | 27 | 79 | 47.7 |
| HDCHA-1502 | 150 | 50 | 1489 | 748 | 212.6 | 106.8 | 1063 | 534 | 264 | 314 | 280 | 190 | 150 | 61 | 83 | 127 | 18.8 | 4-1/4"-12UN | 40 | 79 | 42.4 |
| HDCHA-1506 | 150 | 150 | 1489 | 748 | 212.6 | 106.8 | 3190 | 1602 | 364 | 514 | 280 | 190 | 150 | 61 | 83 | 127 | 18.8 | 4-1/4"-12UN | 40 | 79 | 56.2 |
| HDCHA-15010 | 150 | 250 | 1489 | 748 | 212.6 | 106.8 | 5316 | 2670 | 464 | 714 | 280 | 190 | 150 | 61 | 83 | 127 | 18.8 | 4-1/4"-12UN | 40 | 79 | 70.0 |
Required System Components
Frequently Asked Questions
Q1How does the HydraStark HDCHA compare with the Enerpac RARH?
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How does the HydraStark HDCHA compare with the Enerpac RARH?
The HydraStark HDCHA range (HDCHA Series Lightweight Aluminum D/A Hollow) is positioned as an alternative to the Enerpac RARH (OEM part numbers such as RARH-302, RARH-304, RARH-603, RARH-1003). Enerpac is a registered trademark of its owner; the reference is provided for dimensional and technical comparison only. Mounting dimensions, ratings and interfaces are listed in the specification table on this page — please confirm them against your existing equipment, or send us your OEM part number and our engineers will check compatibility before you order.
Q2What are the key specifications of the HDCHA?
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What are the key specifications of the HDCHA?
Capacity Range: 30 - 150 Metric Ton (Advance) / 21 - 105 Metric Ton (Retract); Center Hole Diameter: 33.5 - 79.0 mm Hollow Core; Stroke Range: 50 - 250 mm; Max Working Pressure: 700 Bar (10,000 PSI); Acting & Return Type: Double-Acting, Hydraulic Powered Advance & Retraction. Full specifications and dimensions are given in the specification table below.
Q3Which models are available in the HDCHA series?
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Which models are available in the HDCHA series?
The specification table lists 12 models: HDCHA-302, HDCHA-306, HDCHA-3010, HDCHA-602, HDCHA-606, HDCHA-6010, HDCHA-1002, HDCHA-1006, HDCHA-10010, HDCHA-1502, HDCHA-1506, HDCHA-15010. For non-standard requirements, please describe them in the inquiry form.
Q4How is the HDCHA tested before shipping?
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How is the HDCHA tested before shipping?
Each unit is tested at 125% of its rated pressure before shipping (700 Bar rated, 875 Bar test pressure).
Q5What are the lead time, warranty and shipping options for the HDCHA?
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What are the lead time, warranty and shipping options for the HDCHA?
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.