Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm 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).
- BoreØ50 mm
- Stroke150 mm
- Adjustable130–150 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 MBLCJ50X150-20
The AirTAC MBLCJ50X150-20 is a compact double-acting mini cylinder featuring a riveted aluminum barrel and a single Ø16 mm hard-chrome plated rod. 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 workpieces over a 150 mm distance. A rear travel stopper allows you to trim up to 20 mm, providing a usable end-position window of 130 to 150 mm.
Unlike the fixed rubber bumper found on the MBLJ variant, this model incorporates a screw-tunable adjustable air cushion at both ends to decelerate the piston near the stroke extremes. This protects the end covers from impact damage during high-speed or heavy-load cycles. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors without modification. The rear stroke stopper sets the travel end and the cushion only decelerates; neither mechanism locks or holds the load in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 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.
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 MBLCJ50X150-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 50 | 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).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20 Is Used
Injection Mold Ejection
Provides 981 N of push force at 0.5 MPa to eject heavier plastic parts from mold cavities, using the adjustable air cushion to prevent harsh end-of-stroke impacts that could damage the mold face.
Stator Winding Stops
The 130 to 150 mm adjustable stroke window allows precise mechanical positioning of copper wire guides in electric motor stator winding machines, tuning the exact insertion depth on the fly.
Pallet Diversion
Handles the redirection of loaded pallets on a 50 mm stroke transfer line, relying on the tunable cushion to absorb the kinetic energy of heavy payloads smoothly without bouncing.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20 the Right Cylinder?
If you need less force, stepping down to the 40 mm bore drops the output to 628 N push at 0.5 MPa, whereas moving up to the 63 mm bore increases thrust to 1558 N. Choose this MBLCJ over the MBLJ when your cycle speeds demand tunable end-cushioning rather than a fixed bumper, or over the MBLC if you need that 20 mm rear stroke adjustment window (130-150 mm) rather than a fixed 150 mm travel. Remember that the adjuster is a travel stop, not a lock; the cylinder will drift without live air pressure, so external locking mechanisms are required for fail-safe holding. Mounting is limited to Basic, FA (flange), or LB (foot) brackets—there is no SDB pivot or back-cover option. To replace this unit exactly, match the 50 mm bore, 150 mm stroke, 20 mm adjust code, G1/4 port, default PT thread, and no magnet.
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 MBLCJ50X150-20 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N push and 881 N pull force. At 0.7 MPa, the push force increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa, with an operating pressure range of 0.15 to 1.0 MPa.
The rear adjustable stroke stopper trims the physical travel end-point, giving you a usable window of 130 to 150 mm for this SKU. The adjustable air cushion is a separate screw-tunable valve that controls the rate of pneumatic deceleration near the end caps. Neither of these features locks the load; the cylinder requires live air to hold position.
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.
Related AirTAC Adjustable-Stroke Cylinders
Request a Quote for Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.