Airtac TMIC Guided Cylinder with Guide Unit TMICM25X250S
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICM25X250S is a genuine guide-frame (guided) pneumatic cylinder — a Ø25mm 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.
- BoreØ25 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 TMICM25X250S
Built around a 25 mm bore, this double-acting guide-frame cylinder integrates an MIC unit into a twin-rod aluminium slide running on brass bearings. It delivers 245.3 N of push force at 0.5 MPa, making it the heaviest hitter in the TMICM cushion family. Needle-set variable air cushions at both ends absorb high-speed end-of-stroke shock, ensuring smooth and quiet motion across the full 250 mm travel.
The rigid brass bearings provide high torsional stiffness to resist radial loads and tool twist. For sizing, a safe working thrust is roughly 147 N, meaning it can push about 12.5 kg vertically with a 2:1 margin. Remember that the frame's allowable payload depends on the load-offset distance, so always confirm the exact capacity from the AirTAC load curves rather than relying on thrust alone.
Airtac TMIC Guided Cylinder with Guide Unit TMICM25X250S Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICM25X250S |
|---|---|
| Series | TMIC guide-frame cylinder |
| Bore size | Ø25 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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 TMICM25X250S
| TMIC | Guide-frame cylinder with variable air cushion. |
|---|---|
| M | Brass bearing — high torsional stiffness, best for radial-load resistance. |
| 25 | 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-TMICM25X250 when needed.
Where the Airtac TMIC Guided Cylinder with Guide Unit TMICM25X250S Is Used
High-Speed Vertical Pressing
Uses the 245.3 N push force to seat components firmly while the brass bearings prevent tool deflection during the 250 mm downstroke.
Long-Stroke Diverting
Shifts heavy pallets across a wide belt where the twin-rod frame maintains square alignment and the air cushions absorb the lateral stop shock.
Elevated Load Transfer
Lifts offset fixtures smoothly at speed, relying on the brass bearings to handle the torsional twist over the extended 250 mm travel.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICM25X250S the Right Cylinder?
Operating at the maximum standard stroke for this bore, the TMICM25X250S provides 245.3 N push and 206.1 N pull at 0.5 MPa. If your application requires less force, stepping down to the 20 mm bore offers 157.0 N of push. Because this is the largest bore available with the cushion build, heavier demands beyond 343.4 N push at 0.7 MPa will require an alternative series. Choose this brass-bearing variant when the load twists or pushes sideways; select the TMICL sibling if you need lower-friction linear bearings.
The variable air cushion is essential for moving heavy loads at high speeds up to 500 mm/s, as it prevents harsh impacts at the 250 mm stroke ends. Note that the cushion only decelerates the piston and does not hold position on air loss; for vertical loads, add an external rod lock or pilot check valve. This -S model includes a magnet for CMSG, DMSG, or EMSG sensors, and uses 1/8 inch ports.
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 TMICM25X250S FAQ
It delivers 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push at 0.7 MPa, and a theoretical max of 50 kgf at 1.0 MPa. Thrust is not the guided-load limit; the actual payload capacity falls as the load sits further from the plate and must be verified from the TMI/TMIC load-offset curves.
No. The variable air cushion only decelerates the piston near the stroke ends and the brass bearings provide torsional stiffness, but neither acts as a lock or brake. On air loss the piston will drift, so you must use an external rod lock or pilot check valve to hold a vertical load. This -S model supports CMSG, DMSG, and EMSG sensors.
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