Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25 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 25mm stroke stays true, giving you a ready-to-mount linear slide without a separate guide.
- BoreØ20 mm
- Stroke25 mm
- Port size1/8"
- BearingBrass bearing
- Acting typeDouble acting
- CushionVariable air cushion, both ends
About the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25
Built around a twin-rod aluminium guide frame on brass bearings, the AirTAC TMICM20X25 is a double-acting guided pneumatic cylinder with a variable air cushion at both ends. The needle-set cushions soak up high-speed shock for smooth, square motion, while the brass bearings provide high torsional stiffness to shrug off radial load when the tooling twists.
At 0.5 MPa this 20 mm bore unit pushes with 157 N of force and pulls with 131.9 N, yielding a safe working thrust of roughly 94 N. That translates to pushing about 8 kg vertically with a 2:1 margin, load curve permitting. The 1/8 inch port feeds the chamber, and because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG sensors. Always confirm the actual allowable payload from the TMI/TMIC load-offset curves rather than relying on thrust alone.
Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25 Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25 |
|---|---|
| Series | TMIC guide-frame cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 TMICM20X25
| TMIC | Guide-frame cylinder with variable air cushion. |
|---|---|
| M | Brass bearing — high torsional stiffness, best for radial-load resistance. |
| 20 | Bore size in mm. |
| ×25 | 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-TMICM20X25 when needed.
Where the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25 Is Used
High-Speed Diverting
With 157 N of push at 0.5 MPa and variable air cushions to absorb end-of-stroke shock, this guided slide cleanly diverts small packages at speed without bouncing.
Pick-and-Place Z-Axis
The brass bearings resist torsional twist during rapid vertical placement moves, while the twin-rod frame keeps the tooling square for reliable pick-and-place cycles.
Light Staking Press
Delivering a safe working thrust of about 94 N, this unit performs light-duty staking and seating tasks, with the cushion softening the impact at the bottom of the 25 mm stroke.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X25 the Right Cylinder?
When sizing this unit, balance your thrust needs against the guide capacity. If 157 N of push at 0.5 MPa is excessive, step down to the TMICM16 (100.5 N push) to reduce air consumption; if you need more force, the TMICM25 delivers 245.3 N. Choose these brass bearings over the linear-bearing TMICL variant when the load pushes sideways or twists the tooling, and rely on the variable air cushion specifically for high-speed or heavy payloads.
Remember that the load the frame can carry falls as the weight sits further from the plate, so size strictly from the load-offset curve. This non-magnet SKU cannot host a position sensor; add the -S suffix if your cycle requires CMSG, DMSG or EMSG switches. The cushion only decelerates near the stroke end and does not lock the rod, so fit an external pilot check valve if you must hold position on air loss.
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 TMICM20X25 FAQ
The double-acting thrust is 157 N push and 131.9 N pull at 0.5 MPa, rising to 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical max of 32 kgf at 1.0 MPa. However, thrust is not the guided-load limit; the allowable payload depends on the load-offset distance and must be read from the TMI/TMIC maximum-load curves.
This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG switches; you need the -S variant for sensors. The variable air cushion at both ends uses a needle valve to decelerate the piston near stroke end for quiet motion, but it is not a lock or brake and the rod will drift on air loss.
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