The AirTAC Airtac TR Twin-Rod Cylinders TR20X40S is a genuine TR twin-rod (double-rod) double-acting cylinder, 20 mm bore. Two parallel rods on one plate resist bending and twisting and let the load mount without rotating. It delivers about 314.2 N of push at 0.5 MPa. A front bumper cushions the impact and adjusts the stroke over a -5 to 0 mm range. As the JIS guide-grade series it adds high non-rotating precision, a lengthening sliding guide (no added lubricant) and two-side ports.
The TR20X40S is a double-acting twin-rod cylinder with two parallel rods carrying one shared mounting plate, so the plate moves without rotating and the load is held against bending and twisting. With a 20 mm bore and 40 mm stroke, it delivers a theoretical push thrust of 314.2 N at 0.5 MPa on the plate (pull side is lower), suited to short-travel push, clamp and stopper work. An external bumper at the front cushions end-of-stroke impact and allows stroke adjustment over -5 to 0 mm.
This is a genuine AirTAC part built to the JIS-standard TR series, the guide-grade twin-rod line with high non-rotating accuracy, low rod-end deflection and a lengthening sliding-support guide that needs no added lubrication. The magnet is fitted as standard on every TR cylinder, with magnetic-switch slots around the body. We confirm exact dimensions and sizing from the datasheet on request.
| Model | Airtac TR Twin-Rod Cylinders TR20X40S |
|---|---|
| Type | Twin-rod cylinder, double acting |
| Series / standard | TR (JIS standard) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 314.2 N |
| Port size | M5x0.8 (PT, G or NPT thread) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper, stroke adjustable -5 to 0 mm |
| Magnet | Standard (magnetic-switch slots around the body) |
Specifications follow the official AirTAC TN/TR twin-rod data. Operating pressure is set by bore (0.2 MPa minimum on the 6 and 10 mm bores). The front cover and piston are short, so avoid an over-long stroke. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
At 20 mm bore this cylinder gives 314.2 N theoretical push at 0.5 MPa; move up to 25 or 32 mm bore if you need more thrust, or down to 16 mm for lighter loads. The TR series is the JIS-standard, precision-guide twin-rod line; if you do not need the higher non-rotating accuracy, the TN enterprise-standard series covers the same 20 mm bore in PT thread only, while TR offers PT, G and NPT - this model is PT. 40 mm is a listed stroke within the 20 mm bore table; keep strokes moderate and confirm short-cover limits and side-load capacity from the datasheet or ask us.
Mounted across a conveyor, the twin rods keep the push plate square as it nudges cartons or parts off the line at a set station, with the bumper softening each stop.
The non-rotating plate clamps a workpiece or fixture squarely without twisting, holding position cycle after cycle on a milling or assembly fixture.
Extended into the path of pallets or sliding parts, the plate acts as a repeatable stop; the magnet lets a sensor confirm the stopper is fully up or down.
TR20X40S decodes as TR (JIS-standard twin-rod series), 20 mm bore, 40 mm stroke, S (magnet fitted, standard on the whole series) and PT thread. Theoretical push thrust at the plate is 314.2 N at 0.5 MPa; the pull side is lower because the rods reduce the effective area. Operating pressure for this bore is 0.15-1.0 MPa (22-145 psi).
Yes - that is the point of the twin rods: the shared plate resists rotation, bending and twisting, so the workpiece mounts straight onto it. Allowable side load and rod-end deflection are published as curves rather than single numbers, so confirm your application against the datasheet or ask us to check it.