
The AirTAC Airtac TCM Triple Axis Cylinder TCM40X250-S is a genuine JIS-standard guided cylinder with a Ø40mm bore and 250mm 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 ±0.06° of rotation without any external linear guide.
The AirTAC TCM40X250-S is a JIS-standard twin-rod guided cylinder featuring a robust brass sliding bearing. Because the drive piston runs between two integrated guide rods, this unit prevents rotation and absorbs side loading without needing an external linear rail. It delivers 628 N of push and 528 N of pull at 0.5 MPa, utilizing a Ø16 piston rod and 1/8" ports. With a 250 mm stroke, it provides substantial travel for moving heavy plates or gating large assemblies.
The brass sliding bearing is built for harsh, dirty environments, shrugging off weld spatter, coolant, and grit where a steel-ball guide would jam. It offers roughly double the horizontal impact resistance of a plain cylinder. Stroke ends are damped by fixed elastomer pads rather than an adjustable cushion. The integrated body includes precision locating holes, allowing you to remove and re-fit the cylinder without re-teaching the exact position. A standard built-in magnet works with CS1 reed or DS1 electronic switches in any of the four sensor slots.
| Model | Airtac TCM Triple Axis Cylinder TCM40X250-S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 | ±0.06° (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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max | 128 kgf | |
Force is set by the bore and piston rod (Ø16 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). |
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL40X250 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Halting heavy pallets on a dusty transfer line is easy with the 628 N push force. The brass sliding bearing tolerates abrasive grit and hard knocks that would destroy a standard ball guide.
Driving a clamping arm in a weld cell exposes the cylinder to spatter and debris. The impact-tolerant brass bearing shrugs off contamination while the ±0.06° non-rotating tolerance keeps the clamp square.
Moving a heavy gripper with an off-centre load over 250 mm travel requires high torsional rigidity. The twin guide rods carry the moment load, preventing twist without an external rail.
This 40 mm bore generates 628 N of thrust at 0.5 MPa. If you need slightly less force, the Ø25 model gives about 245 N of push, while stepping up to the Ø50 bore yields 982 N. Choose the sibling TCL series with its steel-ball linear bearing instead if your application demands low friction and high precision for vertical loads. Keep in mind that a TC cylinder will not hold its load if air pressure drops; the rod drifts when the valve is centred, so add an external rod lock or pilot-operated check valve for a fail-safe hold. This configuration includes the standard magnet (S) and default PT tapered ports.
Quick checklist
At 0.5 MPa, it provides 628 N of push and 528 N of pull. At 0.7 MPa, the push increases to 880 N. The maximum theoretical force is 128 kgf. The operating pressure range is 0.15-1.0 MPa.
No, the TC series uses a fixed rubber (TPU) bumper at each end to soften the stop. There is no air-cushion screw to adjust. The guide resists rotation, but it will not hold a load vertically if air pressure is lost.
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