Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S is a genuine guide-frame (guided) pneumatic cylinder — a Ø20mm double-acting MI mini cylinder built into a twin-rod guide unit running on linear 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"
- BearingLinear bearing
- Acting typeDouble acting
- CushionVariable air cushion, both ends
About the Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S
Built around an MIC mini cylinder housed in a twin-rod aluminium guide frame, the TMICL20X250S delivers true linear motion on precision linear bearings. This 20 mm bore, double-acting slide pushes 157 N and pulls 131.9 N at 0.5 MPa, with a 1/8" port and an 8 mm rod. A needle-set variable air cushion at both ends absorbs high-speed shock for quiet, square stops at the end of its 250 mm stroke.
The linear bearings provide low friction and high precision, making this unit the top pick for vertical push-up moves where smooth travel matters. Factoring a 2:1 safety margin, it pushes about 8 kg vertically, load curve permitting, yielding a safe working thrust near 94 N. The frame carries side load and torque, but remember that thrust is not the load limit—always size the allowable load from the TMI/TMIC maximum load-offset curves. This -S SKU includes a piston magnet for position sensing.
Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S |
|---|---|
| Series | TMIC guide-frame cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 mm |
| Bearing type | Linear bearing (low friction, high precision) |
| 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 TMICL20X250S
| TMIC | Guide-frame cylinder with variable air cushion. |
|---|---|
| L | Linear bearing — low friction, high precision, best for push-up / high-load. |
| 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-TMICL20X250 when needed.
Where the Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S Is Used
Vertical Push-Up Lifting
Leverages the low-friction linear bearings to raise roughly 8 kg payloads smoothly over 250 mm, with the air cushion softening the top stop.
High-Speed Diverting
Handles fast side-loading divert tasks on a line, where the twin-rod frame resists torque and the cushion absorbs end-of-stroke shock.
Precision Pressing
Applies up to 157 N of push force at 0.5 MPa for accurate component seating, using the guided frame to keep the 8 mm rod perfectly true.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICL20X250S the Right Cylinder?
When sizing this 20 mm bore unit, compare it both ways: step down to a 16 mm bore for lighter 100.5 N push tasks, or step up to a 25 mm bore if you need 245.3 N of thrust at 0.5 MPa. Choose these linear bearings over the brass-bearing TMICM when low friction and high travel precision outweigh the need for maximum torsional stiffness. The variable air cushion is essential for high-speed or heavy moving loads, decelerating the piston smoothly to prevent end-of-stroke impact.
Because the load capacity falls as the distance from the guide plate increases, you must verify your offset against the maximum-load curves rather than relying on thrust alone. This TMICL20X250S model carries the -S magnet, so it is ready for CMSG, DMSG, or EMSG solid-state switches. If a pneumatic failure occurs, the cylinder will drift; add an external rod lock or pilot check valve if you need to hold a suspended load.
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 TMICL20X250S FAQ
At 0.5 MPa it pushes 157 N and pulls 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: the allowable load depends on your load-offset distance and must be verified from the TMI/TMIC maximum-load curves.
The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. Linear bearings provide high precision and low friction for vertical push-up moves. The needle-set variable air cushion at both ends only decelerates the piston near stroke end to absorb shock; it is not a lock or brake.
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