Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 500mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ40 mm
- Stroke500 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU
The AirTAC MBLC40X500SU is a double-acting single-rod mini cylinder engineered for a 500 mm stroke within a compact riveted aluminum barrel. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, operating via a G1/4 port and a 16 mm carbon-steel rod with 20 µm hard-chrome plating. This model includes a built-in magnet (-S) for CMSG, DMSG, or EMSG sensor switches, and a rigid U flat-end back cover for straightforward rear mounting.
Unlike the base MBL which relies on a fixed rubber bumper, the MBLC features a screw-adjustable pneumatic cushion at both ends. This lets you tune end-of-stroke deceleration to match heavy 128 kgf loads moving at up to 800 mm/s, absorbing kinetic energy smoothly rather than slamming the end covers. The heterogeneous two-way grease-retaining piston seal maintains lubrication across long frequent cycles.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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).
Where the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU Is Used
Pallet Transfer Line
Pushes heavy pallets 500 mm between conveyor sections at high speed, using the tunable cushion to stop the 628 N thrust smoothly without hammering the end covers.
CNC Lathe Loader
Extends 500 mm to feed bar stock into a lathe chuck, relying on the DMSG sensor and adjustable end-cushioning to protect the spindle from impact.
Vertical Carton Elevator
Lifts packaged goods 500 mm in a tight packaging cell, using the 528 N pull force and U flat-end rear mount for rigid vertical installation.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU the Right Cylinder?
At 0.5 MPa, this 40 mm bore yields 628 N push and 528 N pull. If your payload is lighter, step down to the 32 mm bore (402 N push), but if you need more thrust, step up to the 50 mm bore (981 N push). Choose this MBLC over the standard MBL when running high-speed 500 mm strokes where a fixed bumper cannot adequately absorb the impact. The adjustable cushion needle decelerates the piston near the ends but does not lock the rod—if you need to hold position without live air, fit an external rod lock or pilot-operated check valve.
Because 500 mm is the maximum standard stroke, side-load and rod bending are critical concerns. The 16 mm rod has low side-load tolerance over this distance, so you should guide the load externally, use a CA or SDB pivot mount to absorb arcing, or switch to an MBLD double-rod cylinder to prevent binding.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB / FA / SDB) and back cover (CA pivot / U flat-end).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X500SU FAQ
This 40 mm bore cylinder delivers 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum theoretical force of 128 kgf at 1.0 MPa. The 500 mm stroke is the maximum standard length available for this bore.
A screw needle at each end traps a pocket of exhaust air to decelerate the piston smoothly before it hits the cover. You tune the needle to match the load and speed, which reduces impact, noise, and vibration far better than a fixed rubber bumper. It only decelerates near the ends and does not lock or hold the load.
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