Designed for applications requiring a hollow-center configuration, the RH Series Center Hole Single-Acting Cylinder, 30 Ton, Inch Rod, Inch Stroke delivers 30 tons of capacity with a 6.34 sq in effective area and a 2-1/2 inch stroke. The center hole diameter measures 1.297 inches, making it well-suited for bolt tensioning and other through-hole force applications. Extended height is 8.75 inches.
The cylinder body features a corrosion-resistant standpipe with Power Tech treatment and a threaded collar, consistent with the 30-ton single-acting models in the Rh Series lineup. Interchangeable piston head inserts support versatility across multiple setups. This cylinder is furnished with a 9796 3/8" NPT female half coupler and is rated to withstand full dead-end loads. Manufactured under the Hydraulic Tech USA LLC (Spx) brand.
SKU: RH302
Supplier Part Number (MPN): RH302
Alternate Part Numbers: C1JQ58, MI-02065776, MINO-00630X11327
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Specifications
Capacity (tons)
30
Cylinder Effective Area (sq in)
6.34
Brand
HYDRAULIC TECH USA LLC(SPX)
Brand
Hydraulic Tech USA
Pack Size
1.00
UOM
EA
Extended Height
8.75
Hole Dia.
1.30
Alternate Part Numbers
Alternate Part NumberC1JQ58, Alternate Part Number MI-02065776, Alternate Part Number MINO-00630X11327
Supplier Part Number
RH302
Product Weight
25.60 lbs
Similar Products
Model Number
Capacity (tons)
Stroke
Oil Capacity
Retracted Height
Extended Height
Thread 1
Piston Rod Diameter H
Hole Dia.
Thread 2
Cylinder Effective Area (sq in)
Price
Action
RH102RH Series Single-Acting Cylinder
10
7.813
0.766
2.21
RH121RH Series Single-Acting Cylinder
12
6.438
0.797
2.76
RH123RH Series Single-Acting Cylinder
12
10.25
0.8125
2.76
RH202RH Series Single-Acting Cylinder
20
8.125
1.078
4.72
RH203RH Series Single-Acting Cylinder
20
9.063
1.047
3.92
RH302RH Series Single-Acting Cylinder
30
8.75
1.297
6.34
RH306RH Series Single-Acting Cylinder
30
15.75
1.281
6.34
RH603RH Series Single-Acting Cylinder
60
12.25
2.125
12.31
Product Questions & Answers (2)
Question by: Cheryl G on Jun 11, 2025, 6:34 PM
what exactly is the center hole for on this cylinder, and how big is it? got a bolt tensioning job coming up and tryin to figure out if this'll work
Answer by: Customer Support on Jun 13, 2025, 9:35 AM
The hollow center runs 1.297 inches in diameter straight through the cylinder. That opening lets you slip a bolt, anchor rod, or cable through while the cylinder applies force around it, which is exactly the setup you need for bolt tensioning work. It also handles pulling on cables, forcing screws, and similar through-hole applications where the load path runs down the middle.
Question by: Chad J on Mar 13, 2026, 4:09 PM
got a job pulling on anchor bolts. what size is the hole through the middle on this RH302?
Answer by: Customer Support on Mar 15, 2026, 6:38 AM
For through-bolt and tensioning work, the center hole diameter on the RH302 is 1.297 inches, so your bolt, cable, or forcing screw needs to fit through that opening.