Airtac TCM Triple Axis Cylinder TCM20X85S
The AirTAC Airtac TCM Triple Axis Cylinder TCM20X85S is a genuine JIS-standard guided cylinder with a Ø20mm bore and 85mm 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.
- BoreØ20 mm
- Stroke85 mm
- Port size1/8"
- BearingBrass sliding bearing
- Non-rotating±0.08°
- CushionRubber bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac TCM Triple Axis Cylinder TCM20X85S
The AirTAC TCM20X85S is a JIS-standard twin-rod guided cylinder built for double-acting operation. A drive piston moves between two guide rods carried in a brass sliding bearing, all integrated into one body. This guide unit prevents rotation and carries side load and torque, eliminating the need for an external linear guide. It generates 157 N of push and 118 N of pull at 0.5 MPa, making it well-suited for medium-duty positioning and gating tasks over its 85 mm stroke.
The brass sliding bearing shrugs off dust, grit, and hard knocks, offering about twice the horizontal impact resistance of a plain cylinder. With a non-rotating tolerance of ±0.08°, it keeps a gripper or plate square under off-centre loads. The Ø10 mm piston rod uses 1/8" ports, and stroke ends are damped by fixed TPU bumpers rather than an adjustable air cushion. A standard built-in magnet works with CS1 reed or DS1 electronic switches in the four body slots.
Airtac TCM Triple Axis Cylinder TCM20X85S Technical Specifications
| Model | Airtac TCM Triple Axis Cylinder TCM20X85S |
|---|---|
| Series | TCM JIS guided (twin-rod) cylinder |
| Bore size | Ø20 mm |
| Stroke | 85 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac TCM Triple Axis Cylinder TCM20X85S
| TC | Tri-rod (guided, twin-rod) cylinder, double acting. |
|---|---|
| M | Bearing: Brass sliding bearing (M = brass sliding). |
| 20 | Bore size in mm. |
| ×85 | Stroke length in mm. |
| S | Built-in magnet (standard on TC) for a magnetic sensor switch. |
Sister type: TCL20X85 (steel-ball linear bearing, lower friction & higher precision). Thread codes: blank = PT · G · T = NPT.
Where the Airtac TCM Triple Axis Cylinder TCM20X85S Is Used
Pallet Stop Gate
Halts moving pallets on a dusty transfer line using 157 N of thrust, where the brass sliding bearing tolerates impact and grit that would jam a steel-ball guide.
Off-Centre Gripper Slide
Holds a part gripper square with a ±0.08° non-rotating tolerance, absorbing side torque during 85 mm travel without needing an external linear rail.
Weld-Cell Clamp
Positions a clamping arm in a dirty weld cell, relying on the twin guide rods and brass bearing to shrug off spatter and hard knocks.
Is the Airtac TCM Triple Axis Cylinder TCM20X85S the Right Cylinder?
At 0.5 MPa, this Ø20 bore delivers 157 N of thrust. If your task needs less force, the neighbouring Ø16 bore provides 101 N of push. For heavier radial loads, the Ø25 bore offers 245 N. Choose the sister TCL series with its steel-ball linear bearing instead if your application demands low friction and high precision for vertical work. To replicate this cylinder, specify bore 20, stroke 85, 1/8" PT ports, and the standard S magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Side load / torque the guide must carry
- ✓ TCL (precision, low friction) vs TCM (impact, radial load)
- ✓ Stroke & mounting face (top / bottom / rear)
- ✓ Port/thread type (PT/NPT/G)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check The guide unit takes side load & torque — but do not exceed the max safe load/torque for your stroke.
- check Mount from the top, bottom (screw or T-slot) or rear face; use the precision locating holes.
- check Do not disassemble the fixing block or guide unit — factory-set precision.
- check Fit CS1 / DS1 magnetic switches in the four sensor slots as needed.
Airtac TCM Triple Axis Cylinder TCM20X85S FAQ
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 maximum theoretical force is 32 kgf.
No, the rod will drift if air pressure is lost or the valve is centred, as the guide resists rotation but not gravity. For a fail-safe hold, use an external rod lock or a pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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