Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 400mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ25 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU
The AirTAC MBLC25X400SU is a double-acting aluminum mini cylinder engineered for compact actuation over a 400 mm stroke. It produces 245 N of push force and 206 N of pull force at 0.5 MPa, scaling to a 50 kgf maximum theoretical output at 1.0 MPa. The built-in magnet (-S) enables position sensing with AirTAC CMSG, DMSG, or EMSG sensor switches, while the U flat-end back cover provides a rigid rear mounting face.
Unlike the base MBL’s fixed rubber bumper, this MBLC variant features a screw-adjustable pneumatic cushion at both stroke ends. You tune the exhaust needle to smoothly decelerate the piston, absorbing kinetic energy to protect the end covers during fast or high-frequency cycles. The riveted rolling-packed aluminum barrel keeps the body light and tight for machine cavities, and the 20 µm hard-chrome plated carbon-steel rod operates alongside a heterogeneous two-way grease-retaining piston seal for lasting friction control.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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 MBLC25X400SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×400 | 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 MBLC25X400SU Is Used
PCB Conveyor Staging
Moves populated PCB panels 400 mm between inspection and soldering stations, using the tunable cushion to stop the 245 N push gently without jarring delicate surface-mount components.
Carton Push-Off Arm
Cycles lightweight packaging cartons laterally out of a tight machine cell, relying on the -S magnet to confirm the fully retracted position before the next box drops.
Bottle Diverter Gate
Actuates a 400 mm diverter arm on a narrow filling line, where the adjustable air cushion prevents the mechanism from slamming its pivots at high cycle rates.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU the Right Cylinder?
Stepping down, the 20 mm bore yields 157 N of push at 0.5 MPa, suitable only if your load is very light; stepping up to the 32 mm bore provides 402 N of thrust for heavier resistance. Choose this MBLC over the fixed-bumper MBL when operating near the 800 mm/s maximum speed, as the tunable cushion prevents harsh end-of-stroke impacts. The cushion only decelerates the rod near the ends—it is not a brake and will not hold a load if air pressure drops. For exact replacements, match the 25 mm bore, 400 mm stroke, G1/8 port, M10x1.25 rod thread, PT thread form, U flat-end cover, and the -S magnet option. Because the stroke is 400 mm, the 10 mm rod is highly susceptible to side-load bending; use an external guide rail, an SDB pivot bracket, 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 MBLC25X400SU FAQ
At 0.5 MPa, it generates 245 N of push force and 206 N of pull force. At 0.7 MPa, the push increases to 343 N. The cylinder has a maximum theoretical force of 50 kgf at its 1.0 MPa operating limit, with a proof pressure of 1.5 MPa.
A screw needle at each end restricts exhaust air flow, creating trapped air pressure that decelerates the piston smoothly before it hits the end cover. You tune this needle to match your load and speed, which reduces impact noise and wear compared to a non-adjustable fixed rubber bumper. It is strictly an end-of-stroke damper, not a load-holding brake.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X400SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.