
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X150-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø63mm bore, a 150mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 130–150mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ63X150-20 is a compact double-acting mini cylinder featuring a single Ø16 mm carbon-steel rod with 20 um hard-chrome plating. It integrates a rear travel stopper that allows you to trim up to 20 mm of movement, creating a precise 130-150 mm usable stroke window. Delivering 1558 N of push force at 0.5 MPa, this unit is built for heavy-duty positioning within tight machinery spaces.
Unlike the standard fixed-bumper MBLJ, this model incorporates a screw-tunable air cushion at both ends to decelerate high-speed masses safely. The riveted rolling-packed aluminum barrel and grease-retaining piston seal ensure durable operation. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X150-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø63 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 130–150 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 63 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Provides 1558 N of push force at 0.5 MPa to eject dense plastic parts from molds, using the 130-150 mm stroke window to fine-tune the ejection distance without moving the cylinder mount.
The screw-tunable air cushion decelerates the 2181 N thrust at 0.7 MPa when seating heavy sheet metal bending tools, preventing end-cover damage during rapid cycling.
Uses the rear travel stopper to set a precise 140 mm stopping point for loaded pallets on a conveyor, relying on the robust Ø16 mm rod to absorb the initial impact.
Stepping down in bore size, the 50 mm variant provides 981 N of push force at 0.5 MPa, suitable if your payload is lighter. If you need maximum thrust, the 63 mm bore is the largest available in this series, yielding 318 kgf of theoretical force at 1.0 MPa. Compared to the MBLC, this MBLCJ grants rear travel adjustment, while the MBLJ lacks tunable cushioning entirely.
Remember that the rear adjuster acts only as a mechanical travel stop and the air cushion solely decelerates the load; neither will hold position pneumatically without continuous air supply. Mounting is restricted to Basic, FA flange, or LB foot brackets, as rear SDB pivots and back-cover options are unavailable. Replacement requires matching the 63 mm bore, 150 mm stroke, 20 mm adjust code, G1/4 port, PT thread, and no magnet.
Quick checklist
At 0.5 MPa, this 63 mm bore cylinder delivers 1558 N of push force and 1457 N of pull force. When operating at 0.7 MPa, the push force increases to 2181 N. The maximum theoretical force is 318 kgf at 1.0 MPa.
No, this specific SKU lacks the built-in -S magnet, so it cannot support AirTAC CMSG, DMSG, or EMSG position switches. You would need the MBLCJ63X150-20S variant to enable electronic or reed sensor detection.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.