Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50S
The AirTAC Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50S 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 TMICM20X50S
Built around a twin-rod aluminium guide frame on brass bearings, this double-acting TMICM20X50S linear slide pairs a 20 mm bore with a 50 mm stroke to deliver 157 N of push force at 0.5 MPa. The integrated brass bearings provide high torsional stiffness, making it the right pick when your load twists the tooling or pushes sideways. Because the frame carries the radial load, the internal MIC cylinder stays true.
A needle-set variable air cushion at both ends soaks up high-speed kinetic energy for smooth, square stops. The built-in magnet (-S) enables CMSG, DMSG or EMSG position sensing. Remember that thrust does not dictate capacity: the allowable payload falls as the distance from the guide plate increases, so always confirm the exact load limit from the datasheet's load-offset curve. For context, a safe working thrust is roughly 94 N, or about 8 kg of vertical push with a 2:1 margin.
Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50S Technical Specifications
| Model | Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50S |
|---|---|
| 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 TMICM20X50S
| 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 TMICM20X50S Is Used
Pallet Diverting
Pushes lightweight pallets sideways off a belt at speed; the brass bearings shrug off the torsional twist while the air cushion halts the 8 kg payload smoothly.
Carton Flap Folding
Folds heavy cardboard flaps under side load. The twin-rod frame keeps the tooling square, and the needle cushion absorbs the end-of-stroke shock.
Parts Ejection
Ejects machined parts from a fixture quickly. The 157 N thrust clears the part, while the guided frame resists the off-center load of falling components.
Is the Airtac TMIC Guided Cylinder with Guide Unit TMICM20X50S the Right Cylinder?
When sizing this 20 mm bore unit, step down to a TMICM16X50 (100.5 N push at 0.5 MPa) for lighter loads, or up to a TMICM25X50 (245.3 N push) if you need more force. Choose this brass-bearing M variant over the linear-bearing TMICL when torsional stiffness and radial-load resistance matter more than low-friction precision. The variable air cushion is essential for high-speed moves, but it only decelerates the piston near stroke end—it is not a lock. If you need to hold position on air loss, add an external rod lock or pilot check valve.
This 50 mm stroke unit uses a 1/8" port and moves at 30-500 mm/s. The -S suffix means a magnet is already inside for CMSG/DMSG/EMSG switches; a SKU without the S cannot take a sensor. Always verify the load-offset distance against the maximum-load curves before finalising your selection.
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 TMICM20X50S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa it pushes 219.8 N. The theoretical max is 32 kgf at 1.0 MPa. However, thrust is not the guided-load limit: the actual payload it can carry depends on the load-offset distance and must be read from the TMI/TMIC maximum-load curves.
No, the guide frame resists side load but does not hold the stroke; on air loss the piston drifts. The variable air cushion only decelerates the piston near stroke end to absorb shock—it is not a brake. For vertical holding, use an external rod lock. The -S suffix enables CMSG, DMSG and EMSG sensors.
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