
HSC Series S/A General Purpose Cylinders
Engineering Overview & Structural Features
The HSC Series S/A General Purpose Cylinder is engineered for continuous high-cycle lifting, pressing, and structural maintenance. Rated for 700 Bar (10,000 PSI) working pressure with capacities from 5 to 100 Metric Tons, its monobloc alloy steel body and specialized composite bearing surfaces withstand eccentric side loads up to 10% without cylinder scoring.
MONOBLOC FORGED ALLOY STEEL BODY
Precision-machined from single-piece high-yield alloy steel billet with baked enamel finish, eliminating weld seams and guaranteeing burst safety at 700 Bar.
10% SIDE-LOAD WEAR RESISTANCE
Integrated composite bearing rings and hardened steel guide rings absorb extreme side-load forces up to 10% without cylinder wall galling or rod seizure.
HARD CHROME-PLATED PLUNGER
Induction-hardened high-strength alloy rod treated with heavy hard-chrome plating resists abrasive scratching, corrosion, and rough field mechanical impacts.
PRE-STRESSED ALLOY RETURN SPRING
Heavy-duty straight-pull return spring delivers rapid and full plunger retraction once pressure is released, boosting multi-cycle production throughput.
Saddle Selection
OPTIONAL TILT SADDLE SPECIFICATIONS & LOAD LEVELING ACCESSORIES
| Cylinder Capacity | Saddle Model | Cylinder Capacity | Saddle Model |
|---|---|---|---|
| ton | - | ton | - |
| 5 | - | 30 | ST-50 |
| 10 | ST-10 | 50 | ST-100 |
| 15 | ST-10 | 75 | ST-100 |
| 25 | ST-50 | 100 | ST-100 |
Optional tilt saddles are available for all models. Standard grooved saddles are included on 5-ton models, while ST-series tilt saddles can be selected for capacities from 10 to 100 tons to reduce wear from off-center loads.
Dimensional Engineering Blueprint
TECHNICAL SCHEMATIC & PARAMETER SPECIFICATIONS
Dimension codes (A: Collapsed Height, B: Extended Height, C: Collar Thread, D: Outside Diameter, F/O/P: Saddle Dimensions, U/V: Base Mounting Holes) correspond directly to the Engineering Specifications table below.
OEM Cross-Reference & Dimensional Interchangeability
Single-acting spring-return general-purpose hydraulic cylinders rated for 700 Bar (10,000 PSI), engineered for industrial lifting, pressing, production fixturing, and structural maintenance across 5 to 100 Ton capacities. 5 - 100 Ton / 25 - 362 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.
RATED CAPACITY
5 - 100 Metric Tons
OPERATING PRESSURE
700 Bar (10,000 PSI)
ACTION & RETURN
Single-Acting, Spring Return
Real Product Details & Build Quality
Specifications
Model | Capacity @10,000 PSI (700 BAR) Metric Ton | Stroke mm | Effective Area cm2 | Oil Capacity cm3 | Closed Height (A) mm | Extended Height (B) mm | Collar Thread (C) | Collar Thread Length (X) mm | Outside Diam. (D) mm | Piston Diam. (F) mm | Piston Inner Thread (O) - | Inner Thread Length (P) mm | Base Mounting Hole | Weight kg | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bolt Circle (U) mm | Thread (V) mm | Thread Depth (Z) mm | ||||||||||||||
| HSC-50 | 5 | 16 | 7.1 | 11.4 | 42 | 58 | - | - | 59x42 | 25 | - | - | * | * | * | 0.8 |
| HSC-51 | 5 | 25 | 7.1 | 17.8 | 110 | 135 | 1.1/2" - 16 UN | 28 | 38 | 25 | 3/4" - 16 UNF | 16 | 25 | 1/4" - 20 UN | 14 | 1.0 |
| HSC-53 | 5 | 75 | 7.1 | 53.3 | 165 | 240 | 1.1/2" - 16 UN | 28 | 38 | 25 | 3/4" - 16 UNF | 16 | 25 | 1/4" - 20 UN | 14 | 1.3 |
| HSC-55 | 5 | 127 | 7.1 | 90.2 | 215 | 342 | 1.1/2" - 16 UN | 28 | 38 | 25 | 3/4" - 16 UNF | 16 | 25 | 1/4" - 20 UN | 14 | 1.7 |
| HSC-57 | 5 | 177 | 7.1 | 125.7 | 273 | 450 | 1.1/2" - 16 UN | 28 | 38 | 25 | 3/4" - 16 UNF | 16 | 25 | 1/4" - 20 UN | 14 | 2.1 |
| HSC-59 | 5 | 232 | 7.1 | 164.7 | 323 | 555 | 1.1/2" - 16 UN | 28 | 38 | 25 | 3/4" - 16 UNF | 16 | 25 | 1/4" - 20 UN | 14 | 2.3 |
| HSC-101 | 10 | 26 | 14.5 | 37.7 | 89 | 115 | 2.1/4" - 14 UN | 26 | 57 | 38 | ** | - | 39 | 5/16" - 18 UN | 12 | 1.7 |
| HSC-102 | 10 | 54 | 14.5 | 78.3 | 121 | 175 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 2.2 |
| HSC-104 | 10 | 105 | 14.5 | 152.25 | 171 | 276 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 2.9 |
| HSC-106 | 10 | 156 | 14.5 | 226.2 | 247 | 403 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 4.1 |
| HSC-108 | 10 | 203 | 14.5 | 294.35 | 298 | 501 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 4.9 |
| HSC-1010 | 10 | 257 | 14.5 | 372.65 | 349 | 606 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 5.6 |
| HSC-1012 | 10 | 304 | 14.5 | 440.8 | 400 | 704 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 6.4 |
| HSC-1014 | 10 | 356 | 14.5 | 516.2 | 450 | 806 | 2.1/4" - 14 UN | 26 | 57 | 38 | 1" - 8 UNC | 19 | 39 | 5/16" - 18 UN | 12 | 7.2 |
| HSC-151 | 15 | 25 | 21.2 | 53 | 124 | 149 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 3.2 |
| HSC-152 | 15 | 51 | 21.2 | 108.12 | 149 | 200 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 3.7 |
| HSC-154 | 15 | 101 | 21.2 | 214.12 | 200 | 301 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 5.0 |
| HSC-156 | 15 | 152 | 21.2 | 322.24 | 271 | 423 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 6.5 |
| HSC-158 | 15 | 203 | 21.2 | 430.36 | 322 | 525 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 7.7 |
| HSC-1510 | 15 | 254 | 21.2 | 538.48 | 373 | 627 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 8.7 |
| HSC-1512 | 15 | 305 | 21.2 | 646.6 | 423 | 728 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 9.8 |
| HSC-1514 | 15 | 356 | 21.2 | 754.72 | 474 | 830 | 2.3/4" - 16 UN | 35 | 69 | 42 | 1" - 8 UNC | 25 | 47 | 3/8" - 16 UN | 12 | 10.8 |
| HSC-251 | 25 | 26 | 33.2 | 86.32 | 139 | 165 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 5.3 |
| HSC-252 | 25 | 50 | 33.2 | 166 | 165 | 215 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 6.2 |
| HSC-254 | 25 | 102 | 33.2 | 338.64 | 215 | 317 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 8.0 |
| HSC-256 | 25 | 158 | 33.2 | 524.56 | 273 | 431 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 10.3 |
| HSC-258 | 25 | 210 | 33.2 | 697.2 | 323 | 533 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 12.1 |
| HSC-2510 | 25 | 261 | 33.2 | 866.52 | 374 | 635 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 14.1 |
| HSC-2512 | 25 | 311 | 33.2 | 1032.52 | 425 | 736 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 15.5 |
| HSC-2514 | 25 | 362 | 33.2 | 1201.84 | 476 | 838 | 3.5/16" - 12 UN | 54 | 86 | 57 | 1.1/2" - 16 UN | 26 | 58 | 1/2" - 13 UN | 19 | 17.4 |
| HSC-308 | 30 | 209 | 44.2 | 923.78 | 387 | 596 | 3.5/16" - 12 UN | 50 | 102 | 57 | 1.1/2" - 16 UN | 26 | - | - | - | 21.5 |
| HSC-502 | 50 | 51 | 70.9 | 361.59 | 176 | 227 | 5" - 12 UN | 55 | 127 | 80 | - | - | 95 | 1/2" - 13 UN | 19 | 14.4 |
| HSC-504 | 50 | 102 | 70.9 | 723.18 | 227 | 329 | 5" - 12 UN | 55 | 127 | 80 | - | - | 95 | 1/2" - 13 UN | 19 | 18.1 |
| HSC-506 | 50 | 159 | 70.9 | 1127.31 | 282 | 441 | 5" - 12 UN | 55 | 127 | 80 | - | - | 95 | 1/2" - 13 UN | 19 | 22.2 |
| HSC-5013 | 50 | 337 | 70.9 | 2389.33 | 460 | 797 | 5" - 12 UN | 55 | 127 | 80 | - | - | 95 | 1/2" - 13 UN | 19 | 34.3 |
| HSC-756 | 75 | 156 | 103.9 | 1620.84 | 285 | 441 | 5.3/4" - 12 UN | 45 | 146 | 95 | - | - | - | - | - | 30.5 |
| HSC-7513 | 75 | 333 | 103.9 | 3459.87 | 492 | 825 | 5.3/4" - 12 UN | 45 | 146 | 95 | - | - | - | - | - | 50.3 |
| HSC-1002 | 100 | 50 | 133 | 676 | 219 | 270 | 6.7/8" - 12 UN | 44 | 178 | 105 | - | - | 139 | 3/4" - 10 UN | 25 | 36.7 |
| HSC-1004 | 100 | 102 | 133 | 1353.9 | 291 | 393 | 6.7/8" - 12 UN | 44 | 178 | 105 | - | - | 139 | 3/4" - 10 UN | 25 | 48.4 |
| HSC-1006 | 100 | 168 | 133 | 2234.4 | 357 | 525 | 6.7/8" - 12 UN | 44 | 178 | 105 | - | - | 139 | 3/4" - 10 UN | 25 | 59.7 |
| HSC-10010 | 100 | 260 | 133 | 3458 | 449 | 709 | 6.7/8" - 12 UN | 44 | 178 | 105 | - | - | 139 | 3/4" - 10 UN | 25 | 72.9 |
Required System Components
Frequently Asked Questions
Q1How does the HydraStark HSC compare with the Enerpac RC?
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How does the HydraStark HSC compare with the Enerpac RC?
The HydraStark HSC range (HSC Series S/A General Purpose Cylinders) is positioned as an alternative to the Enerpac RC (OEM part numbers such as RC-50, RC-51, RC-53, RC-55, RC-101, RC-102). 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 HSC?
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What are the key specifications of the HSC?
Rated Capacity: 5 - 100 Metric Tons; Operating Pressure: 700 Bar (10,000 PSI); Action & Return: Single-Acting, Spring Return; Stroke Range: 25 - 362 mm; Collar Threads: Standard Body Threads & Base Mounting Holes. Full specifications and dimensions are given in the specification table below.
Q3Which models are available in the HSC series?
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Which models are available in the HSC series?
The specification table lists 41 models: HSC-50, HSC-51, HSC-53, HSC-55, HSC-57, HSC-59, HSC-101, HSC-102, HSC-104, HSC-106, HSC-108, HSC-1010, …. For non-standard requirements, please describe them in the inquiry form.
Q4How is the HSC tested before shipping?
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How is the HSC tested before shipping?
Each unit is tested at 125% of its rated pressure before shipping (700 Bar rated, 875 Bar test pressure). This is above the 100% rated-load test required by ASME B30.1.
Q5What are the lead time, warranty and shipping options for the HSC?
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What are the lead time, warranty and shipping options for the HSC?
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.











