Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50 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 50mm stroke stays true, giving you a ready-to-mount linear slide without a separate guide.
- BoreØ20 mm
- Stroke50 mm
- Port size1/8"
- BearingBrass bearing
- Acting typeDouble acting
- CushionVariable air cushion, both ends
About the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50
Built around a twin-rod aluminium guide frame on brass bearings, the AirTAC TMICM20X50 is a double-acting guided cylinder that keeps your tooling perfectly square under offset loads. A needle-set variable air cushion at both ends absorbs high-speed shocks for quiet, smooth stops, while the brass bearing provides high torsional stiffness to resist twisting forces. It pushes with 157 N and pulls with 131.9 N at 0.5 MPa.
This 20 mm bore model uses an 8 mm rod and a 1/8 inch port, delivering a safe working thrust of roughly 94 N for steady cycling. It can push about 8 kg vertically with a 2:1 safety margin, load curve permitting. Remember the guide frame's allowable load drops as the weight sits further from the plate, so always size from the load-offset curve rather than the thrust alone. This non-magnet SKU cannot take a sensor; add the -S option for CMSG/DMSG/EMSG switches.
Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50 Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50 |
|---|---|
| Series | TMIC guide-frame cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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 TMICM20X50
| TMIC | Guide-frame cylinder with variable air cushion. |
|---|---|
| M | Brass bearing — high torsional stiffness, best for radial-load resistance. |
| 20 | Bore size in mm. |
| ×50 | 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-TMICM20X50 when needed.
Where the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50 Is Used
Pallet Push-Off
Uses the 157 N push force to deflect products off a belt, with the brass bearings handling the sideways torsion of skewed items.
Carton Flap Folding
Folds heavy flaps at speed where the variable air cushion prevents end-of-stroke jarring that would misalign the box.
Part Ejection
Ejects machined parts sideways against gravity, relying on the twin-rod frame to maintain tooling squareness under radial load.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50 the Right Cylinder?
If 157 N of push at 0.5 MPa is too much, step down to the TMICM16X50 (100.5 N) to save space; if your payload is heavier, the TMICM25X50 delivers 245.3 N. Choose this brass-bearing M variant over the linear-bearing TMICL when your application involves high torsional loads or side pushing rather than low-friction precision. The variable air cushion is essential for high-speed moves up to 500 mm/s, decelerating the load smoothly at stroke end. Always verify the allowable load against the offset curve, and select the -S magnet version if you need position sensing.
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 TMICM20X50 FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N; at 0.7 MPa it pushes 219.8 N and pulls 184.7 N, with a theoretical max of 32 kgf at 1.0 MPa. Thrust is not the guided load limit, however. The actual weight it can carry depends entirely on the load-offset distance and must be read from the TMI/TMIC maximum-load curves.
No. The variable air cushion only decelerates the piston near the end of stroke; it is not a brake or lock, so the piston will drift on air loss. Use an external rod lock or pilot check valve to hold a load. Additionally, this specific SKU lacks a magnet and cannot take a sensor; you need the -S variant to mount CMSG, DMSG or EMSG switches.
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