The AirTAC AirTAC MBL40X75SU Mini Cylinder | 40mm Bore 75mm Stroke is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 75mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
The AirTAC MBL40X75SU is a double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 40mm bore and 75mm stroke, it generates 628 N of push force and 528 N of pull force at 0.5 MPa. The U suffix denotes a rigid flat-end back cover for fixed rear mounting, while the integrated -S magnet enables position detection. This genuine AirTAC component operates on filtered air at 30-800 mm/s.
Unlike ISO tie-rod bodies, this cylinder uses a riveted rolling-packed aluminum barrel where the covers are crimped to the tube, yielding a lighter footprint that is not designed to be disassembled. Internal longevity is handled by a heterogeneous two-way piston seal that retains grease, and the carbon steel rod features 20 um hard-chrome plating for wear resistance. The base MBL uses a fixed rubber bumper to soften end-of-stroke impact; for adjustable air cushioning, the MBLC variant is required.
| Model | AirTAC MBL40X75SU Mini Cylinder | 40mm Bore 75mm Stroke |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Rubber bumper (MBLC variant: adjustable air cushion) |
| Max stroke | Up to 500 mm |
Specifications follow the official AirTAC MBL series datasheet. Confirm against the product label before installation. Standard stroke to 500 mm (special order to 800 mm). Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: MBLC (adjustable cushion), MBLD (double rod), MBLJ (adjustable stroke), MSBL/MTBL (single acting).
Indexes small tool turrets on benchtop CNC lathes, using the 628 N push force to positively lock the indexing mechanism in confined workshop machinery.
Folds minor flaps on compact packaging lines where the 75mm stroke and fixed rubber bumper absorb the repeated end-of-stroke impact without requiring a large profile cylinder.
Ejects stamped metal parts from progressive dies into collection bins, relying on the DMSG electronic sensor to confirm full ejection before the press cycles.
At 0.5 MPa, this 40mm bore yields 628 N push and 528 N pull. If you need less force, step down to the 32mm bore (402 N push), or step up to the 50mm bore (981 N push) for heavier payloads. The -S magnet on this SKU supports AirTAC CMSG (reed) and DMSG/EMSG (electronic) sensor switches for end-of-stroke confirmation. The port size is G1/4 with a PT thread form.
Because the U back cover provides a rigid fixed mount, it suits straightforward linear pushes. Remember that a plain MBL does not hold its position or load when air pressure is lost or the valve is centred; the rod drifts, as the rubber bumper is not a lock. For load-holding safety, add an external rod lock or pilot-operated check valve.
Quick checklist
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa the push force is 880 N, with a theoretical maximum of 128 kgf at 1.0 MPa. The double-acting operating speed ranges from 30-800 mm/s.
No, the base MBL40X75SU uses a fixed rubber bumper to soften end-of-stroke impact, not an adjustable cushion screw. If your application requires adjustable air cushioning for heavier moving loads, you must specify the MBLC variant.
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