Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X300SCA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X300SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 MBLC40X300SCA
The AirTAC MBLC40X300SCA is a double-acting aluminum mini cylinder featuring a 40mm bore and 300mm stroke. It generates 628 N of push force and 528 N of pull force at 0.5 MPa, making it well-suited for moving moderate masses over longer linear distances. The defining feature of this MBLC series is the screw-adjustable pneumatic air cushion at both stroke ends. Unlike a fixed rubber bumper, this needle-tunable cushion decelerates the piston smoothly near the end of travel, absorbing kinetic energy to protect the end covers during high-speed or heavy cycles.
This specific SKU includes the -S built-in magnet for compatibility with AirTAC CMSG (reed), DMSG, and EMSG (solid-state electronic) sensor switches to detect rod position. The CA back cover provides a pivot/clevis mount that swings on a pin, accommodating arcing or angular loads. The body utilizes a riveted rolling-packed aluminum barrel for a compact, lightweight profile in tight spaces, paired with a heterogeneous two-way grease-retaining piston seal and a 20 µm hard-chrome plated carbon-steel rod for wear resistance.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X300SCA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X300SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 MBLC40X300SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 MBLC40X300SCA Is Used
Automated Door Opening
Drives a 300mm linear stroke to open heavy machine access doors, using the CA clevis to accommodate the slight arc of the pivoting door panel.
Package Pusher Arm
Pushes medium-weight cartons across a conveyor at high speed, relying on the adjustable air cushion to silently brake the 628N thrust at stroke end.
Vertical Lift Gate
Raises a materials handling lift gate 300mm, using the -S magnet and DMSG electronic sensor to confirm the gate is fully open before the conveyor runs.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC40X300SCA the Right Cylinder?
At 0.5 MPa, this 40mm bore yields 628 N push and 528 N pull. If your application requires less force, stepping down to the 32mm bore provides 402 N push and 346 N pull. If you need to move heavier loads, stepping up to the 50mm bore offers 981 N push and 881 N pull. Choose this MBLC variant over the base MBL when your cycle speeds are too fast or the moved mass too heavy for a fixed rubber bumper to absorb without causing impact damage. Keep in mind the adjustable air cushion only decelerates near the ends; it is not a load lock or brake, so a plain cylinder will drift if air is lost or the valve centers.
Because the 300mm stroke is relatively long for a compact cylinder with a Ø16mm rod, side-load tolerance is low and the rod is susceptible to bending under lateral stress. To manage this, utilize the CA pivot cover with a clevis pin, add an external guide rail to support the load, or consider the MBLD double-rod type to prevent rotational torque. Replacement match: 40mm bore, 300mm stroke, G1/4 port, PT thread, CA pivot back cover, S 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 MBLC40X300SCA FAQ
At 0.5 MPa, this 40mm bore cylinder provides 628 N push force 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. It operates at speeds ranging from 30 to 800 mm/s.
The MBLC40X300SCA features a screw-tunable pneumatic cushion at both ends. You adjust the needle valve to trap a pocket of exhaust air, decelerating the piston smoothly before it hits the end cover. This protects the cylinder on fast or heavy 300mm moves, but it is not a brake or load lock.
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