This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U in place of this model. 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 MTAL40X20U
The AirTAC Airtac MTAL Rear Single Acting Mini Cylinder MTAL40X20U is a single acting, pull (spring extend) aluminum-barrel mini cylinder with a Ø40mm bore and 20mm stroke, G1/4 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 drop-in replacement is the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U.
- BoreØ40 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeSingle acting, pull (spring extend)
- Rod threadM12×1.25
- StatusDiscontinued → AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U
About the Airtac MTAL Rear Single Acting Mini Cylinder MTAL40X20U
The AirTAC MTAL40X20U is a discontinued single-acting pull cylinder with a 40mm bore, 20mm stroke, and a U flat-end back cover. Air retracts the rod while an internal spring extends it, yielding a fail-safe extended home position. It delivers a usable pull force of 439.4 N at 0.5 MPa and 650.4 N at 0.7 MPa. The exact drop-in replacement is the MTBL40X20U, matching the bore, stroke, G1/4 port, and mounting.
This MTAL40X20U SKU lacks the -S magnet, so it cannot accept a position sensor. The MTBL upgrade changes the sensor family to CMSG/DMSG/EMSG and replaces the threaded covers with a riveted rolling-packed body. It uses a fixed rubber bumper for end-of-stroke damping. Apply no external load on the spring extend stroke, as the return spring force is small and meant only for cycling.
Airtac MTAL Rear Single Acting Mini Cylinder MTAL40X20U Technical Specifications
| Model | Airtac MTAL Rear Single Acting Mini Cylinder MTAL40X20U |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull (spring extend) |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U carries the same single-acting ratings.
Usable Pull Force (Ø40mm)
| Pressure | Pull force (net of spring) |
|---|---|
| 0.5 MPa | 439.4 N |
| 0.7 MPa | 650.4 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 MTAL40X20U
| MTAL | Single acting, pull (spring extend) aluminum-barrel mini cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×20 | 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 MTAL40X20U Is Used
Injection Mold Ejector
Pulls an ejector pin back into the mold base against 439.4 N at 0.5 MPa, ensuring the spring-extended fail-safe home clears the parting line during air loss.
Packaging Flap Folder
Retracts a carton folding arm during the cycle; the internal spring extends the rod out of the way when the 3/2 valve exhausts, preventing box jams.
Lathe Chuck Latch
Draws back a safety latch on a CNC chuck to clear the spinning workpiece, relying on the fixed rubber bumper to absorb the retracted stopping force.
Replacing the Airtac MTAL Rear Single Acting Mini Cylinder MTAL40X20U with AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U
To replace this MTAL40X20U, confirm the 40mm bore, 20mm stroke, G1/4 port, PT thread, and U flat-end cover match your mount. The MTBL40X20U is the drop-in upgrade. Remember the minimum 0.2 MPa working pressure and the fail-safe extended home position. This SKU has no -S magnet, so no sensor can be mounted; the MTBL uses CMSG/DMSG/EMSG switches.
For sizing, the next size down is the 32mm bore (261.2 N pull at 0.5 MPa), and the next size up is not available in this single-acting pull series. With a 20mm stroke, keep rod-bending side loads minimal. The fixed rubber bumper absorbs impact at the ends.
Upgrade checklist
- ✓ Order the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U (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 AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U instead of this discontinued model.
Airtac MTAL Rear Single Acting Mini Cylinder MTAL40X20U FAQ
Yes, the MTAL40X20U is discontinued. The exact drop-in replacement is the MTBL40X20U, matching the 40mm bore, 20mm stroke, G1/4 port, and U flat-end cover. The MTBL upgrade uses a riveted rolling-packed body instead of threaded covers.
It is a single-acting pull cylinder, so air retracts and the spring extends. The usable pull force is 439.4 N at 0.5 MPa and 650.4 N at 0.7 MPa. The fail-safe home position is extended. It requires a minimum of 0.2 MPa to overcome the return spring.
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Drop-in Upgrade
The AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL40X20U replaces this model 1:1.
Fast Dispatch
MTBL replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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