Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S is a genuine guide-frame (guided) pneumatic cylinder — a Ø20mm double-acting MI mini cylinder built into a twin-rod guide unit running on brass bearings. The guide frame absorbs side load and torque so the 125mm stroke stays true, giving you a ready-to-mount linear slide without a separate guide.
- BoreØ20 mm
- Stroke125 mm
- Port size1/8"
- BearingBrass bearing
- Acting typeDouble acting
- CushionVariable air cushion, both ends
About the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S
Built around a twin-rod aluminium guide frame running on brass bearings, the TMICM20X125S is a double-acting linear slide ready to mount. A needle-set variable air cushion at both ends soaks up high-speed shock for smooth, square stops, while the brass bearing design delivers high torsional stiffness to shrug off radial load when the tooling twists or pushes sideways.
This 20 mm bore unit pushes 157 N and pulls 131.9 N at 0.5 MPa through its 1/8" port, yielding a safe working thrust of about 94 N. That equates to pushing roughly 8 kg vertically with a 2:1 safety margin, load curve permitting. The -S suffix means a piston magnet is fitted for CMSG, DMSG or EMSG switches. Remember the frame's allowable load falls as the offset grows, so size from the load-offset curve, not thrust alone.
Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S |
|---|---|
| Series | TMIC guide-frame cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 mm |
| Bearing type | Brass bearing (high torsional stiffness) |
| Guide | Twin-rod guide frame, double-rod unit |
| Port size | 1/8" |
| Acting type | Double acting |
|---|---|
| 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 |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 250 mm |
Specifications follow the official AirTAC TMI/TMIC datasheet. Guide frame & fixed plate: aluminum alloy; matching cylinder: MI/MIC round-body mini cylinder. Allowable load depends on the load-offset distance — consult the TMI/TMIC maximum-load curves before final selection. Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Thrust equals the underlying MI cylinder. The usable load a guide frame can carry is limited by the load-offset curve, not by thrust alone — always check both. Actual force is lower than theoretical due to friction and back-pressure.
Model Code: Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S
| TMIC | Guide-frame cylinder with variable air cushion. |
|---|---|
| M | Brass bearing — high torsional stiffness, best for radial-load resistance. |
| 20 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
TMI/TMIC family: TMI (bumper) / TMIC (cushion), bearing M (brass) / L (linear). Order the guide frame separately as F-TMICM20X125 when needed.
Where the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S Is Used
Pallet Diverting
Uses the 157 N push force to deflect light pallets on a high-speed line, relying on the air cushion to absorb end-of-stroke impact without bouncing.
Carton Flap Folding
Folds heavy cardboard flaps under torsional stress; the brass bearings keep the tooling square while the twin rods resist the twisting load.
Vertical Part Lifting
Lifts a 4 kg fixture over 125 mm of stroke, staying within the 8 kg vertical margin while the guided frame prevents binding on the way up.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S the Right Cylinder?
If 94 N of safe working thrust is too much, step down to the TMICM16X50S (100.5 N push at 0.5 MPa); if you need more force, the TMICM25X75S pushes 245.3 N at 0.5 MPa. Pick this brass-bearing M variant over the linear-bearing TMICL when your application applies heavy side load or torsional stress. The variable air cushion is essential for high-speed moves, but it only decelerates near stroke end—it will not hold the load on air loss. For position holding, add an external rod lock or pilot check valve. Always verify the allowable load against the offset distance using the official load curve.
Quick checklist
- ✓ Required thrust at your working pressure
- ✓ Load and offset within the load curve
- ✓ Bearing: brass (torque) vs linear (precision)
- ✓ Stroke and mounting space
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Keep the load within the load-offset curve.
- check Mount on a flat, rigid surface using the fixed plate.
- check Do not exceed the rated speed (30-500 mm/s).
- check Installation by qualified personnel per AirTAC docs.
Airtac TMIC Guided Cylinder with Guide Unit TMICM20X125S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa it pushes 219.8 N, with a theoretical max of 32 kgf at 1.0 MPa. Thrust is not the guided-load limit, however. The actual load it can carry depends on the offset distance and must be confirmed from the TMI/TMIC maximum-load curves.
Yes, the -S suffix provides a built-in piston magnet for CMSG, DMSG or EMSG switches. The variable air cushion only decelerates the piston near stroke end; it is not a brake. On air loss the piston will drift, so use an external rod lock or pilot check valve if you need to hold the load.
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