This model is discontinued
AirTAC has phased out the MTAL series. You can still order this code here: we ship the direct replacement MTBL20X40U, 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 MTAL20X40U
The AirTAC Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40U 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 AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U.
- BoreØ20 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeSingle acting, pull (spring extend)
- Rod threadM8×1.25
- StatusDiscontinued → AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U
- 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 MTAL20X40U
The AirTAC MTAL20X40U is a discontinued single-acting pull mini cylinder with a 20mm bore and 40mm stroke. Air retracts the rod while an internal spring extends it, yielding a fail-safe extended home position. It produces 81.7 N of usable pull force at 0.5 MPa. The direct replacement is the MTBL20X40U, matching the bore, stroke, port, and force.
This U-back-cover SKU lacks a magnet and cannot accept a position sensor. The original MTAL features threaded covers and a PT-tapered G1/8 port, while the MTBL upgrade uses a riveted rolling-packed body. Both rely on a fixed rubber bumper for end-of-stroke damping. Apply no external load on the spring extend stroke to avoid damaging the internal mechanism.
Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40U Technical Specifications
| Model | Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40U |
|---|---|
| Series | MAL single-acting mini cylinder (discontinued) |
| Replacement | AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U |
| 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 AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U 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 MTAL20X40U
| 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 MTAL20X40U Is Used
Textile Loom Tension Release
Retracts a yarn tensioning arm on a weaving loom using the 81.7 N pull at 0.5 MPa, with the spring extending safely to release tension on air loss.
PCB Router Gate Pull
Draws back a small routing gate on a printed circuit board depaneling machine, fitting the compact 20mm bore and 40mm stroke constraints.
Feeder Bowl Diverter
Pulls a diverter flap inside a vibratory parts feeder, relying on the fixed rubber bumper to absorb the repetitive end-of-stroke impact.
Replacing the Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40U with AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U
To replace the MTAL20X40U with the MTBL20X40U, confirm the 20mm bore, 40mm stroke, M8x1.25 rod thread, G1/8 port, and U flat-end back cover. Because this SKU has no magnet, you lose sensor capability entirely unless you upgrade to an -S MTBL variant using CMSG or DMSG switches. The system requires a 3/2 valve and a minimum 0.2 MPa operating pressure. Remember that the fail-safe state is extended, and you must not apply external loads to the spring extend stroke.
For sizing flexibility, stepping down is not an option as 20mm is the smallest available bore. Stepping up to the 32mm bore yields a higher 261.2 N pull force at 0.5 MPa if your application demands greater retraction power.
Upgrade checklist
- ✓ Order the AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U (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 AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U instead of this discontinued model.
Airtac MTAL Rear Single Acting Mini Cylinder MTAL20X40U FAQ
Yes, the MTAL20X40U is discontinued. The direct replacement is the MTBL20X40U, which matches the 20mm bore, 40mm stroke, G1/8 port, and U back cover.
The 20mm bore single-acting pull cylinder delivers 81.7 N at 0.5 MPa and 134.4 N at 0.7 MPa (roughly 13.7 kgf max). It requires a 0.2-1.0 MPa pressure range and operates at 50-800 mm/s. Because this specific SKU lacks a magnet, it cannot accept CS1-M or DS1-M sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The AIRTACMTBLREARSINGLEACTINGMINICYLINDERMTBL20X40U 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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