Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10 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 10mm for a usable window of 240–250mm. Adjustable air cushion (both ends).
- BoreØ50 mm
- Stroke250 mm
- Adjustable240–250 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable air cushion (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10
The AirTAC MBLCJ50X250-10 is a compact double-acting aluminum mini cylinder featuring a rear adjustable stroke and an adjustable air cushion at both ends. It delivers 981 N of push force and 881 N of pull force at 0.5 MPa, making it well-suited for moving heavier jigs or actuators over its 240 to 250 mm usable travel window. The riveted rolling-packed aluminum barrel keeps the body light, while the Ø16 carbon-steel rod with 20 µm hard-chrome plating resists scoring.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air cushions to decelerate heavy loads smoothly near each end cap, protecting the end covers from impact shock. The 10 mm rear adjuster acts strictly as a travel stop to set the exact end position, not a lock to hold the load. Note that this specific SKU lacks a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 250 mm |
| Adjustable window | 240–250 mm (trim 10 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | Nominal stroke length in mm. |
| -10 | 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).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10 Is Used
Injection Mold Ejection
Provides 981 N of push force at 0.5 MPa to positively eject heavy plastic parts from a 250 mm deep mold, using the adjustable cushion to soften the final stop.
Pallet Transfer Pusher
Transfers loaded workholding pallets between conveyor lanes, using the 240-250 mm stroke window to dial in the exact push distance without repositioning the cylinder.
Press Die Stripping
Strips heavy stamped metal sheets from press dies, relying on the 881 N pull force and tunable end-of-stroke air cushions to prevent shock damage to the tooling.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10 the Right Cylinder?
Stepping down in bore size, the 40 mm neighbor provides 628 N push at 0.5 MPa, whereas stepping up to the 63 mm bore yields 1558 N for heavier demands. Choose this MBLCJ variant over the MBLJ when your moving mass requires tuned deceleration rather than a fixed bumper, or over the MBLC if you need to fine-tune the end position within that 240-250 mm window. Because the 250 mm stroke is relatively long for the 8 mm to 16 mm rod range, external guide rails should be used to prevent rod bending under side loads. Neither the rear stopper nor the cushion acts as a lock; live air or an external lock is required to hold position. Mounting is limited to Basic, FA flange, or LB foot styles (no SDB or back-cover options). For an exact replacement, match the 50 mm bore, 250 mm stroke, 10 mm adjust code, G1/4 port, PT thread, and confirm no magnet is required.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X250-10 FAQ
At 0.5 MPa it provides 981 N push and 881 N pull force. At 0.7 MPa the push force is 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
The 10 mm rear adjustable stroke is a mechanical travel stop that sets your usable end position between 240 and 250 mm. The adjustable air cushion is a needle valve that controls end-of-stroke deceleration to protect the end covers. Neither holds the load in place; they are not locks.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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