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HydraStark HSCHA Series Lightweight Aluminum Hollow Cylinders - product photo 1

zoom_in 700 BAR RATED

FACTORY DIRECT20 - 150 Metric Ton

HSCHA Series Lightweight Aluminum Hollow Cylinders

Single-acting spring-return lightweight aluminum hollow plunger cylinders rated for 700 Bar (10,000 PSI), engineered for post-tensioning, tie rod proof testing, and pin extraction across 20 to 150 Ton capacities.

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CAPACITY RANGE:20 - 150 Metric Ton

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STROKE RANGE:50 - 250 mm

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CENTER HOLE DIAMETER:27 - 79 mm (Through-Hole)

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RATED PRESSURE:700 Bar (10,000 PSI)

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CYLINDER MATERIAL:7075-T6 Aircraft Aluminum

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BASE & SADDLE PROTECTION:6mm Hardened Steel Base Plate

sync_altOEM Cross-Reference:Enerpac RACH Series

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Engineering Overview & Structural Features

The HSCHA Series Lightweight Aluminum Hollow Cylinders combine high-tonnage tensioning and pulling capability with exceptional job-site portability, forged from ultra-high-yield 7075-T6 aerospace aluminum alloy to deliver over 50% weight reduction versus conventional steel cylinders. Operating at 700 Bar (10,000 PSI) working pressure with capacities from 20 to 150 Metric Tons, every model features a precision through-hole bore accommodating pre-stressing tendons, tie rods, and cable stays, complemented by a self-aligning floating center tube, deep hard-coat anodized surfaces, and a removable 6mm protective steel base plate for heavy field reliability.

CORE ENGINEERING ARCHITECTURE & TECHNICAL SPECIFICATIONS

HOLLOW PLUNGER & FLOATING CENTER TUBE

Through-hole center bore allows both push and pull forces for post-tensioning strands and cable pulling. The self-aligning floating center tube isolates rod deflection and side load stresses, dramatically extending internal seal life.

COMPOSITE BEARINGS & HARD-COAT ANODIZING

Reinforced composite bearings eliminate metal-to-metal contact to increase sideload resistance and cycle life. Full-surface MIL-spec hard-coat anodized finish resists abrasive wear, scratching, and severe atmospheric corrosion.

STEEL BASE DEFENSE & HOLLOW SADDLE

Equipped standard with a removable 6mm hardened steel base protection plate and bolt-on hardened hollow steel saddle to protect lightweight aluminum surfaces against point-load gouging and job-site abrasion.

INTEGRAL STOP RING & RAPID RETRACTION

Integral stop ring prevents plunger over-travel and withstands full rated cylinder capacity. High-strength pretensioned return spring ensures rapid retraction, paired with heavy-duty handles and ASME B30.1 compliance.

STEEL PLATE MOUNTING HOLES & BASE SPECIFICATIONS

Steel Plate Mounting Hole Dimensions (Including 6mm Plate Thickness)

Cylinder Model	Bolt Circle U (mm)	Thread V	Thread Depth Z (mm)
HSCHA-20 (20 Ton)	80	M6	12
HSCHA-30 (30 Ton)	110	M6	12
HSCHA-60 (60 Ton)	160	M6	12
HSCHA-100 (100 Ton)	220	M10	12
HSCHA-150 (150 Ton)	245	M10	12

* Standard 6mm hardened steel base plate shields lightweight aluminum cylinder foundations from job-site abrasion and debris.

ENGINEERING DIMENSIONAL BLUEPRINT & SCHEMATIC

HSCHA Series Lightweight Aluminum Hollow Cylinder CAD Blueprint

        A: Closed Height
        B: Extended Height
        D: Outside Diameter
        E: Cylinder Bore
        F: Plunger Diameter
        H: Base to Coupler Port
        J: Saddle Diameter
        K: Saddle Protrusion
        Y: Center Hole Diameter
        U: Bolt Circle
        V: Thread Size
        Z: Thread Depth
      

OEM DIRECT INTERCHANGEABLEDIMENSIONALLY INTERCHANGEABLE

OEM Cross-Reference & Dimensional Interchangeability

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VERIFIED MODEL DIRECT REPLACEMENT

HYDRASTARKHSCHA Series

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OEM BENCHMARKEnerpac RACH SeriesCOMPARABLE SPECIFICATION

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Direct Drop-in Replacement for OEM SKUs:

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.

speed

CAPACITY RANGE

20 - 150 Metric Ton

tune

STROKE RANGE

50 - 250 mm

architecture

CENTER HOLE DIAMETER

27 - 79 mm (Through-Hole)

AUTHENTIC FACTORY WORKSHOP SHOTS

Real Product Details & Build Quality

HSCHA Series Lightweight Aluminum Hollow Cylinders - Authentic Factory Real Detail Photo 1

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HSCHA Series Lightweight Aluminum Hollow Cylinders - Authentic Factory Real Detail Photo 2

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HSCHA Series Lightweight Aluminum Hollow Cylinders - Authentic Factory Real Detail Photo 3

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HSCHA Series Lightweight Aluminum Hollow Cylinders - Authentic Factory Real Detail Photo 4

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HSCHA Series Lightweight Aluminum Hollow Cylinders - Authentic Factory Real Detail Photo 5

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HSCHA Series Lightweight Aluminum Hollow Cylinders - Authentic Factory Real Detail Photo 6

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Specifications

ALL MEASUREMENTS IN METRIC

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	Outside Diam. (D) mm	Bore Diam. (E) mm	Piston Diam. (F) mm	Center Hole Diam. mm	Bottom to Port (H) mm	Saddle Diam. (J) mm	Saddle Protrusion (K) mm	Weight Kg
HSCHA-202	20	50	32.7	164	188	238	100	75	55	27	29	55	10	5.2
HSCHA-204	20	100	32.7	327	251	351	100	75	55	27	29	55	10	6.1
HSCHA-206	20	150	32.7	491	315	465	100	75	55	27	29	55	10	7.1
HSCHA-208	20	200	32.7	654	378	578	100	75	55	27	29	55	10	8.0
HSCHA-2010	20	250	32.7	818	442	692	100	75	55	27	29	55	10	9.0
HSCHA-302	30	50	51.1	256	208	258	130	95	70	34	29	70	10	8.0
HSCHA-304	30	100	51.1	511	267	367	130	95	70	34	29	70	10	9.5
HSCHA-306	30	150	51.1	766	333	483	130	95	70	34	29	70	10	11.2
HSCHA-308	30	200	51.1	1022	395	595	130	95	70	34	29	70	10	12.9
HSCHA-3010	30	250	51.1	1277	458	708	130	95	70	34	29	70	10	14.5
HSCHA-602	60	50	84.7	423	251	301	180	130	100	54	61	100	12	16.2
HSCHA-604	60	100	84.7	847	315	415	180	130	100	54	61	100	12	19.5
HSCHA-606	60	150	84.7	1270	380	530	180	130	100	54	61	100	12	25.6
HSCHA-608	60	200	84.7	1694	445	645	180	130	100	54	61	100	12	26.0
HSCHA-6010	60	250	84.7	2117	510	760	180	130	100	54	61	100	12	29.6
HSCHA-1002	100	50	164.6	823	258	308	250	185	145	79	61	145	14	33.8
HSCHA-1004	100	100	164.6	1646	325	425	250	185	145	79	61	145	14	39.8
HSCHA-1006	100	150	164.6	2487	391	541	250	185	145	79	61	145	14	46.2
HSCHA-1008	100	200	164.6	3291	459	659	250	185	145	79	61	145	14	52.2
HSCHA-10010	100	250	164.6	4114	527	777	250	185	145	79	61	145	14	58.8
HSCHA-1502	150	50	225.8	1129	280	330	275	205	150	79	61	145	14	48.9
HSCHA-1504	150	100	225.8	2258	360	460	275	205	150	79	61	145	14	55.7
HSCHA-1506	150	150	225.8	3387	430	580	275	205	150	79	61	145	14	63.0
HSCHA-1508	150	200	225.8	4517	500	700	275	205	150	79	61	145	14	70.1
HSCHA-15010	150	250	225.8	5646	570	820	275	205	150	79	61	145	14	77.2

HSCHA Series · 25 MODELS LISTED

CAPACITY RANGE: 20 - 150 Metric Ton

Required System Components

PUMPS

HPM-P Series Hand Pump

700 BAR · TWO-SPEEDView Specs

HOSES

HSH Series High-Pressure Hose

700 - 2800 BARView Specs

MONITORING

HSG Series Pressure Gauge

0 - 1600 BAR · CLASS 1.0View Specs

FITTINGS

HQC Series Quick Couplers

700 - 1400 BAR · 3/8" NPTView Specs

SELECTION & PROCUREMENT

Frequently Asked Questions

How does the HydraStark HSCHA compare with the Enerpac RACH?

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The HydraStark HSCHA range (HSCHA Series Lightweight Aluminum Hollow Cylinders) is positioned as an alternative to the Enerpac RACH (OEM part numbers such as RACH-202, RACH-302, RACH-304, RACH-603, RACH-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.

What are the key specifications of the HSCHA?

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Capacity Range: 20 - 150 Metric Ton; Stroke Range: 50 - 250 mm; Center Hole Diameter: 27 - 79 mm (Through-Hole); Rated Pressure: 700 Bar (10,000 PSI); Cylinder Material: 7075-T6 Aircraft Aluminum. Full specifications and dimensions are given in the specification table below.

Which models are available in the HSCHA series?

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The specification table lists 25 models: HSCHA-202, HSCHA-204, HSCHA-206, HSCHA-208, HSCHA-2010, HSCHA-302, HSCHA-304, HSCHA-306, HSCHA-308, HSCHA-3010, HSCHA-602, HSCHA-604, …. For non-standard requirements, please describe them in the inquiry form.

How is the HSCHA tested before shipping?

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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.

What are the lead time, warranty and shipping options for the HSCHA?

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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.