
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-100 is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm bore, a 250mm nominal stroke and a rear adjustable-stroke stopper — trim up to 100mm for a usable window of 150–250mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ50X250-100 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. It delivers 981 N push and 881 N pull force at 0.5 MPa via a Ø16 hard-chrome plated rod. The rear stopper allows you to trim up to 100 mm of travel, creating a usable working window of 150 to 250 mm for precise end positioning.
Unlike the fixed rubber bumper found on the MBLJ variant, the screw-tunable end cushions here allow you to dial in deceleration for heavy 250 mm strokes, protecting the end covers from impact. Note that this specific SKU lacks a built-in magnet (-S), meaning it cannot support CMSG, DMSG, or EMSG position sensors. The riveted rolling-packed barrel and grease-retaining piston seal ensure long service life in tight machinery spaces.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 250 mm |
| Adjustable window | 150–250 mm (trim 100 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 | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | Nominal stroke length in mm. |
| -100 | 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).
Pushes heavy cartons at 981 N force, using the 150-250 mm stroke window to accommodate varying box sizes without changing the cylinder mount.
Decelerates fast-moving machining pallets using the adjustable air cushions, preventing end-cover damage during high-cycle automated loading.
Holds timber securely with 881 N pull force, relying on the 250 mm stroke to accommodate varying material widths in tight routing cells.
For lower force requirements, stepping down to a 40 mm bore yields 628 N push at 0.5 MPa, while moving up to a 63 mm bore provides 1558 N. Choose this MBLCJ model over the MBLJ when your moving mass requires tuned pneumatic deceleration rather than a simple rubber bumper. If your travel length is fixed and does not need the 150-250 mm adjustment window, the standard MBLC series offers the same cushioning without the rear stopper.
Remember that the rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load under pressure without continuous air supply. Mounting is limited to Basic, FA flange, or LB foot styles, as this series omits back-cover and SDB pivot options. The PT threaded port matches the G1/4 specification. Because the 250 mm stroke is substantial for a 50 mm bore, an external guide is recommended to prevent rod bending under side loads.
Quick checklist
At 0.5 MPa it provides 981 N push and 881 N pull; at 0.7 MPa it pushes 1374 N, with a theoretical maximum of 200 kgf at 1.0 MPa. Neither the rear stroke adjuster nor the air cushions act as a lock; the rod drifts without live air, so an external locking device is required for true load holding.
The 100 mm code means you can mechanically trim the rear travel stop, creating a usable end-position window from 150 to 250 mm. Because this SKU lacks the -S magnet code, it cannot accept CMSG reed or DMSG/EMSG electronic switches for position 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.
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