Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 MBLC40X350SU
The AirTAC MBLC40X350SU is a double-acting aluminum mini cylinder engineered with a screw-adjustable pneumatic cushion at both stroke ends. Generating 628 N of push force and 528 N of pull force at 0.5 MPa, it drives substantial loads over a 350 mm travel distance. The U suffix denotes a rigid flat-end back cover for direct mounting, while the integrated -S magnet enables position detection via CMSG reed or DMSG and EMSG solid-state sensor switches.
Unlike the fixed rubber bumper found on the base MBL series, this MBLC variant allows you to tune the end-of-stroke deceleration to match your load and velocity. The riveted rolling-packed aluminum barrel keeps the overall footprint tight for tight machinery, while the 20 µm hard-chrome plated carbon-steel rod pairs with a heterogeneous two-way grease-retaining piston seal to ensure lasting friction control.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MBLC40X350SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MBLC40X350SU Is Used
CNC Pallet Unlatching
Provides the 628 N push force required to release heavy machining vise pallets, using the tuned air cushion to prevent shock damage to the spindle area over the 350 mm extraction stroke.
Pallet Divert Gate
Shifts loaded conveyor divert arms smoothly, where the adjustable end-cushioning absorbs the momentum of moving product masses without slamming into the end covers.
Carton Pusher Array
Executes 350 mm cardboard carton transfers in packaging lines, relying on the -S magnet and DMSG electronic sensors to verify full extension for the PLC.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X350SU the Right Cylinder?
Stepping down in force, the 32 mm bore yields 402 N of push at 0.5 MPa, whereas stepping up to the 50 mm bore provides 981 N for heavier payloads. The 350 mm stroke pushes the limits of the 16 mm rod's side-load tolerance, making an external guide rail, a CA or SDB pivot bracket, or the double-rod MBLCD type essential to prevent rod bending. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a brake, so a plain double-acting cylinder will drift if air pressure is lost. Replacement match: 40 mm bore, 350 mm stroke, G1/4 port, M12x1.25 rod thread, PT thread form, U flat-end back cover, with a built-in magnet.
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 MBLC40X350SU FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push increases to 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
A screw-tunable needle at each end restricts the exhaust flow, trapping a pocket of air to decelerate the piston smoothly before it hits the cover. You dial the needle to match your specific load and speed, which cuts impact noise and vibration on fast or heavy moves. It is strictly a deceleration device, not a load lock.
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Covers non-human-caused product damage.
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