Enerpac RT Series telescopic cylinders lift up to 24 in in a single movement from a compact collapsed height, in two-stage and three-stage models rated 15.4 to 34.8 tons at full stroke. Need help choosing? Send us your load and lift height and we will match a cylinder and pump.
Why a telescopic cylinder
A telescopic cylinder nests several steel stages inside each other, so it starts low and extends much farther than a single-stage cylinder of the same collapsed height. Enerpac says the longer stroke saves time by moving a load a greater distance and removing the need for temporary cribbing.
RT Series specifications
From Enerpac's catalog. Capacity is the rating at full stroke; each stage carries less than the one before it.
| Model | Stages | Capacity at full stroke (ton) | Stroke (in) | Collapsed height (in) | Extended height (in) | Oil capacity (cu in) | Weight (lbs) |
|---|---|---|---|---|---|---|---|
| RT1510 | 2 | 15.4 | 10.63 | 11.14 | 21.77 | 57.61 | 33 |
| RT2111 | 2 | 22.2 | 11.81 | 12.48 | 24.29 | 90.74 | 48 |
| RT3311 | 2 | 34.8 | 11.81 | 13.86 | 25.67 | 143.96 | 88 |
| RT1817 | 3 | 18.7 | 17.13 | 13.58 | 30.71 | 188.69 | 89 |
| RT2119 | 3 | 22.2 | 19.69 | 15.55 | 35.24 | 284.43 | 148 |
| RT3323 | 3 | 34.8 | 23.62 | 18.74 | 42.36 | 537.99 | 273 |
All RT models are single-acting, load return, with a maximum operating pressure of 10,150 psi.
How capacity changes by stage
- First stage: the highest load capacity, over the shortest part of the stroke.
- Second stage: more stroke, at a lower capacity than the first stage.
- Final stage: full extension, at the lowest capacity.
Size the cylinder on the load it must carry at the full height you need, not on the first stage rating.
Built for field lifting
- Nitrocarburized inside and out for corrosion protection and surface hardness
- Rated for side load of 3 percent of full capacity
- Double or triple wear bearings support the lifting stages
- A wiper ring on each stage to limit contamination
- Stop ring capable of full load to prevent overstroke
- Integrated tilt saddle with up to 5 degrees of tilt
- Two certified lifting eyes for handling and positioning
- CR400 coupler for compatibility with standard Enerpac hoses
- Design safety factor complies with ASME B30.1 and EN1494
Choosing a pump
A three-stage RT holds much more oil than a two-stage model, up to 537.99 cu in for the RT3323. Choose a pump with more usable oil than the cylinder's oil capacity, plus what the hose holds. Enerpac gives hose oil capacity as 0.5892 cu in per foot for 0.25 in ID hose. Compare pumps in Enerpac Hydraulic Pumps, and add a gauge from Hydraulic Pressure Gauges.
Related collections
For less height and short stroke, see RLT Low-Height Telescopic Cylinders and Low Height Cylinders. For standard lifting, browse General Purpose Hydraulic Cylinders or all Enerpac Hydraulic Cylinders.
