This model is discontinued
AirTAC has phased out the MTAL series. You can still order this code here: we ship the direct replacement MTBL20X40SU, with the same bore, stroke, output force, port and mounting, so it fits the same application. The replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU
The AirTAC Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU is a single acting, pull (spring extend) aluminum-barrel mini cylinder with a Ø20mm bore and 40mm stroke, G1/8 ports and a fixed rubber bumper. Air drives the pull (work) stroke and the spring returns the rod — it rests extended on air loss. This model is discontinued; the direct replacement is the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU.
- BoreØ20 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeSingle acting, pull (spring extend)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU
The AirTAC MTAL20X40SU is a discontinued single-acting pull-type mini cylinder. Air retracts the 8mm rod, while an internal spring extends it, meaning the fail-safe home position is extended. It delivers a usable pull force of 81.7 N at 0.5 MPa. The direct replacement is the MTBL20X40SU, matching the 20mm bore, 40mm stroke, and G1/8 port.
This SKU includes a U-type flat-end back cover and an S-magnet for position sensing. The MTAL uses threaded covers and CS1-M / DS1-M switches, whereas the MTBL upgrade features a riveted rolling-packed body and CMSG / DMSG / EMSG sensors. It uses a fixed rubber bumper and a hard-chromed carbon-steel rod. Apply no external load on the spring extend stroke.
Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU Technical Specifications
| Model | Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU |
| Bore size | Ø20 mm |
| Stroke | 40 mm |
| Acting type | Single acting, pull (spring extend) |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 100 mm |
Single-acting minimum working pressure is 0.2 MPa (the air must overcome the return spring). Do not apply an external load during the spring return stroke. The AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU carries the same single-acting ratings.
Usable Pull Force (Ø20mm)
| Pressure | Pull force (net of spring) |
|---|---|
| 0.5 MPa | 81.7 N |
| 0.7 MPa | 134.4 N |
Usable single-acting force after the return spring — lower than a same-bore double-acting cylinder. Size with a margin.
Model Code: Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU
| MTAL | Single acting, pull (spring extend) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×40 | Stroke length in mm. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MTBL uses CMSG/DMSG/EMSG). |
| CA / U / CM | Back cover: CA pivot, U flat-end or CM round-end. |
Replacement: MTAL → MTBL. Related: MSAL/MSBL (single-acting push), MAL/MBL (double acting).
Where the Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU Is Used
Electronic Connector Unlatching
Pulls a latch back to release PCB connectors during automated test fixtures. The 81.7 N pull at 0.5 MPa handles the retention force, and the spring-extend fail-safe ensures the latch opens safely on air loss.
Light Coil Tensioning
Draws back a wire guide arm in a small winding machine. The single-acting design uses one 3/2 valve, and the fixed rubber bumper quietly stops the 40mm pull stroke without bouncing the fine wire.
Gripper Jaw Release
Retracts a secondary holding jaw in pick-and-place electronics handling. The CS1-M magnet confirms jaw retraction, while the spring-extend home pushes the jaw out to release delicate parts if compressed air drops.
Replacing the Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU with AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU
To replace this MTAL20X40SU, use the MTBL20X40SU. Confirm the 20mm bore, 40mm stroke, PT G1/8 port, M8x1.25 rod thread, U back cover, and the sensor change from CS1-M/DS1-M to CMSG/DMSG/EMSG. Remember the 0.2 MPa minimum pressure and the extended fail-safe home.
If sizing your pull force, this 20mm bore gives 81.7 N at 0.5 MPa. Stepping down is not an option as 20mm is the smallest. Stepping up to the 25mm bore yields 137.2 N at 0.5 MPa. The fixed rubber bumper absorbs end-of-stroke shock; it is not a lock, so use an external device for held loads.
Upgrade checklist
- ✓ Order the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU (same bore/stroke/force)
- ✓ Same pull direction and extended fail-safe home
- ✓ Min 0.2 MPa; no external load on the spring return
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
- ✓ Confirm back cover (CA / U) and thread (PT/NPT/G)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 1.0 MPa (min 0.2 to overcome the spring).
- check Apply no external load on the spring return stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU instead of this discontinued model.
Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40SU FAQ
Yes, the MTAL20X40SU is discontinued. The direct replacement is the MTBL20X40SU, which matches the 20mm bore, 40mm stroke, G1/8 port, and U-type back cover. You will only need to update your sensors from the old CS1-M / DS1-M switches to the new CMSG / DMSG / EMSG family.
The usable pull force is 81.7 N at 0.5 MPa and 134.4 N at 0.7 MPa, with a minimum operating pressure of 0.2 MPa. It is a single-acting pull cylinder, so air retracts the rod and the internal spring extends it. On air loss, the fail-safe home position is extended.
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Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40SU replaces this model 1:1.
Fast Dispatch
MTBL replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended MTBL Replacements
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