
The AirTAC TCM Triple Axis Cylinder TCM20X25SH is a genuine JIS-standard guided cylinder with a Ø20mm bore and 25mm stroke on twin guide rods. Its integrated brass sliding bearing gives high radial-load and impact resistance — about double the horizontal impact tolerance of a plain cylinder, holding the tool square to ±0.08° of rotation without any external linear guide.
The AirTAC TCM20X25SH is a JIS-standard twin-rod guided cylinder configured for double-acting operation, integrating a robust brass sliding bearing within a single body. It yields 157 N of push and 118 N of pull at 0.5 MPa, scaling to 220 N at 0.7 MPa. Because the guide unit prevents rotation and carries side load, you can skip adding an external linear rail. The brass bearing shrugs off dust, weld spatter and hard knocks, offering roughly twice the horizontal impact resistance of a plain cylinder where a steel-ball guide might jam from contamination. A non-rotating tolerance of ±0.08° keeps a gripper or blade perfectly square under off-centre loads.
This specific SKU features Viton (FKM) seals for high-temperature endurance and uses PT tapered port threading on its 1/8" fittings. Travel terminates against fixed rubber (TPU) bumpers at both ends, meaning there is no adjustable air cushion or cushion screw to tune. The standard built-in magnet works seamlessly with CS1 reed or DS1 electronic switches in any of the four sensor slots. Remember that the twin guide rods resist twist, not gravity; if air pressure drops, the rod will drift, so fit an external rod lock for fail-safe holding.
| Model | Airtac TCM Triple Axis Cylinder TCM20X25SH |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Bearing | Brass sliding bearing |
| Port size | 1/8" |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Non-rotating tolerance | ±0.08° (retracted) |
| Cushion | Rubber bumper |
| Max std stroke | Up to 250 mm |
Specifications follow the official AirTAC TCL/TCM series datasheet (JIS standard). Confirm against the product label before installation. Thread options: PT (blank) / G / NPT. Every TC model ships with a built-in magnet for sensor switches.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max | 32 kgf | |
Force is set by the bore and piston rod (Ø10 mm); the twin guide rods carry side load and torque, not thrust. Actual usable force is lower than theoretical due to friction and back-pressure.
| TC | Tri-rod (guided, twin-rod) cylinder, double acting. |
|---|---|
| M | Bearing: Brass sliding bearing (M = brass sliding). |
| 20 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL20X25 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Tolerates weld spatter and grit where a ball guide would jam. The 157 N push at 0.5 MPa secures off-centre clamps, while the ±0.08° non-rotating tolerance holds the fixture square.
Halts moving pallets on a dusty line. The brass sliding bearing absorbs the horizontal impact, offering double the knock resistance of a plain cylinder, and the Ø10 rod handles the radial load.
Pushes sand-mould patterns in dirty environments. Viton (FKM) seals withstand elevated ambient heat, and the fixed TPU bumpers cushion the 25 mm stroke end without needing adjustment.
Choosing this Ø20 bore yields 157 N of thrust at 0.5 MPa. If you need less force, step down to the Ø16 bore which provides about 101 N of push, or move up to the Ø25 bore for 245 N if your side-load requires more rigidity. The 25 mm stroke is well within the 250 mm maximum standard limit for this bore. When replacing, match the 20 mm bore, 25 mm stroke, 1/8" PT ports, and the standard S magnet. Choose the TCL series instead only if your application demands a steel-ball linear bearing for low-friction, high-precision vertical lifting.
Quick checklist
At 0.5 MPa it provides 157 N of push and 118 N of pull. At 0.7 MPa the push increases to 220 N. The theoretical maximum force is 32 kgf.
No, the stroke ends are damped by fixed rubber (TPU) bumpers rather than an adjustable cushion. There is no cushion screw to set. The cylinder also uses Viton (FKM) seals for high-temperature duty.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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