
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X15SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 15mm 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 MBLC40X15SU is a compact double-acting aluminum mini cylinder engineered for very short, high-force movements. It generates 628 N of push force and 528 N of pull force at 0.5 MPa, making this 40 mm bore, 15 mm stroke unit perfect for tight-space actuation where abrupt stops would normally cause damage. Unlike the base MBL, this variant features a screw-adjustable pneumatic cushion at both ends to decelerate the piston smoothly near stroke limits, effectively minimizing end-cover impact and vibration.
This specific configuration includes a built-in magnet (S) for rod position detection using AirTAC CMSG, DMSG, or EMSG sensor switches, and a U flat-end back cover for rigid mounting. The riveted rolling-packed aluminum barrel keeps the body light, while the Ø16 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear. A heterogeneous two-way grease-retaining piston seal ensures consistent lubrication over the cylinder's 30-800 mm/s operating speed range.
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X15SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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. |
| ×15 | 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).
Short 15 mm strokes are ideal for ejecting small stamped metal pins from a die, using the 628 N force to knock parts clear without overshooting the compact press bed.
Provides the precise 15 mm downward push to engage electrical test probes onto a printed circuit board, where the adjustable cushion prevents bouncing that could scratch the contacts.
Delivers a fast, short punch to tuck inner flaps on small packaging cartons, relying on the tunable cushion to stop the rod abruptly before it dents the cardboard.
Select this 40 mm bore model when an application demands substantial force in a tiny footprint but lacks the stroke distance for standard shock absorption. If you need less force, step down to the 32 mm bore (402 N push at 0.5 MPa); if you require heavier lifting, step up to the 50 mm bore (981 N push at 0.5 MPa). Choose the MBLC over the fixed-bumper MBL when cycling speeds are high enough that impact noise becomes a concern. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a lock, so the rod will drift if air pressure is lost. This SKU uses a G1/4 port, PT thread, and a U flat-end rear cover.
Quick checklist
This 40 mm bore cylinder uses a G1/4 port and a Ø16 mm rod with an M12x1.25 thread. At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa, push increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
The cushion is a screw-tunable needle valve at both ends that traps exhaust air to decelerate the piston before it hits the end cover. You tune it to match the load and speed, which reduces impact noise and wear. It is strictly an end-of-stroke deceleration device, not a braking lock.
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Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
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