Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC32X125U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC32X125U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø32mm bore and 125mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ32 mm
- Stroke125 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 MBLC32X125U
The AirTAC MBLC32X125U is a double-acting aluminum mini cylinder engineered for compact actuation, delivering 402 N push and 346 N pull force at 0.5 MPa. The 125 mm stroke suits mid-travel part transfer and clamping tasks. Unlike the fixed rubber bumper on the base MBL, this MBLC variant features a screw-adjustable pneumatic air cushion at both ends. You tune the needle to decelerate the piston smoothly near stroke limits, cutting end-cover impact, noise, and vibration on faster or heavier moves.
This model uses a riveted rolling-packed aluminum barrel for a light, space-saving profile rather than a bulky rebuildable tie-rod design. It incorporates a heterogeneous two-way grease-retaining piston seal and a 12 mm carbon-steel rod with 20 µm hard-chrome plating for wear resistance. The U flat-end back cover provides a rigid rear mount. Because this specific SKU lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor switch.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC32X125U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC32X125U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 MBLC32X125U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 MBLC32X125U Is Used
PCB Router Gantry
Drives a 125 mm routing head lift on a PCB depaneling machine, using the 402 N force and tuned cushion to stop abruptly without shocking the delicate spindle bearings.
Carton Flap Folder
Folds minor flaps on a packaging line where the 346 N pull retracts a 125 mm arm, relying on the adjustable cushion to prevent the arm from slamming the rear cover at high cycle rates.
Connector Press Feed
Advances a connector tape feed mechanism in an electronics assembly press, using the rigid U flat-end mount to anchor the 125 mm travel while absorbing end-of-stroke energy pneumatically.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC32X125U the Right Cylinder?
If you need less force, the 25 mm bore offers 245 N push at 0.5 MPa, while stepping up to the 40 mm bore yields 628 N for heavier payloads. Choose this MBLC over the base MBL when your cycle speeds or moved mass outpace the absorption capability of a fixed rubber bumper. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a load lock or brake. A plain MBLC will not hold position if air is lost or the valve centers, so add an external rod lock or pilot-operated check for fail-safe holding. Your direct replacement match: 32 mm bore, 125 mm stroke, G1/8 port, PT thread, U flat-end back cover, no 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 MBLC32X125U FAQ
At 0.5 MPa, this 32 mm bore double-acting cylinder provides 402 N of push force and 346 N of pull force. At 0.7 MPa, push increases to 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
The MBLC32X125U has a screw-tunable needle at both ends that traps air to decelerate the piston smoothly near stroke limits. You adjust it to match your load and speed, which protects the end covers and reduces noise on fast cycles. It is strictly an end-of-stroke damper, not a mid-stroke brake or load lock.
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