Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250 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 250mm stroke stays true, giving you a ready-to-mount linear slide without a separate guide.
- BoreØ20 mm
- Stroke250 mm
- Port size1/8"
- BearingBrass bearing
- Acting typeDouble acting
- CushionVariable air cushion, both ends
About the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250
Built around a 20 mm bore, this double-acting guide-frame cylinder pairs an MIC round body with a twin-rod aluminium slide running on brass bearings. The needle-set variable air cushion at both ends soaks up high-speed shock, while the brass bearings provide high torsional stiffness to resist side loads and tool twist. It pushes 157 N and pulls 131.9 N at 0.5 MPa.
The frame keeps the rod true, but the allowable payload depends on the load-offset distance, so always confirm the exact capacity from the TMI/TMIC maximum-load curves. For a safe working thrust, expect around 94 N (60% of the 0.5 MPa push figure), which translates to pushing about 8 kg vertically with a 2:1 margin, load permitting. This unit uses a 1/8" port and has no magnet, so it cannot take a sensor.
Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250 Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250 |
|---|---|
| Series | TMIC guide-frame cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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 TMICM20X250
| TMIC | Guide-frame cylinder with variable air cushion. |
|---|---|
| M | Brass bearing — high torsional stiffness, best for radial-load resistance. |
| 20 | Bore size in mm. |
| ×250 | 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-TMICM20X250 when needed.
Where the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250 Is Used
Long-Stroke Diverting
Pushes packages across a conveyor over the full 250 mm travel, with the air cushion absorbing the high-speed impact at stroke end for quiet operation.
Pallet Push-Off
Handles the sideways push and torque of sliding a tote off a pallet, using the brass bearings to keep the tool square under a 157 N thrust load.
Carton Flap Folding
Folds heavy cardboard flaps over a long distance, relying on the twin-rod guide frame to prevent rod binding while driving the 8 kg vertical load.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X250 the Right Cylinder?
This 250 mm stroke model sits at the top of the standard stroke range for the 20 mm bore. If your payload is lighter, the TMICM16X250 offers 100.5 N push at 0.5 MPa; if you need more force, the TMICM25X250 pushes 245.3 N. Choose this brass-bearing build over the TMICL linear-bearing variant when the load twists or pushes sideways. The variable air cushion is essential for high-speed travel, but remember it only decelerates near the end of stroke and does not lock the load. For position holding on air loss, add an external rod lock or pilot check valve.
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 TMICM20X250 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, so you must size the payload using the TMI/TMIC maximum-load curves based on your load-offset distance.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you need the -S variant for sensors. The brass bearings provide high torsional stiffness and radial-load resistance, making this frame ideal when the load pushes sideways or twists the tool, while the variable air cushion decelerates motion at the ends.
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