Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20S 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 MBLCJ50X150-20S
The AirTAC MBLCJ50X150-20S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The -20S code lets you trim up to 20 mm of travel at the rear, providing a usable stroke window of 130 to 150 mm. Driven by a Ø16 rod through a G1/4 port, it generates 981 N of push force and 881 N of pull force at 0.5 MPa, making it well-suited for mid-weight positioning tasks over a 150 mm span.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air deceleration to protect the end covers during faster or heavier moves. The riveted rolling-packed barrel and heterogeneous grease-retaining piston seal maintain consistent lubrication, while the carbon-steel rod features 20 μm hard-chrome plating for wear resistance. The built-in magnet (-S) enables position detection, and the rear stopper simply sets the travel end—it does not lock the load in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20S |
|---|---|
| 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 MBLCJ50X150-20S
| 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 MBLCJ50X150-20S Is Used
Thermoforming Press Ejection
Delivering 981 N of push force, this cylinder strips formed plastic sheet from molds, using the 130-150 mm adjustable window to time the ejection stroke precisely.
Bottling Line Diverter
The adjustable air cushions allow this 50 mm bore actuator to redirect heavy glass bottle flows at high speed without slamming the end covers.
Woodworking Panel Press
Tuning the 20 mm rear stopper sets the exact 145 mm clamping depth for veneer pressing, while the -S magnet confirms full extension to the PLC.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X150-20S the Right Cylinder?
If your application requires less force, stepping down to the 40 mm bore yields 628 N of push at 0.5 MPa, whereas stepping up to the 63 mm bore provides 1558 N for heavier payloads. Choose this MBLCJ over the MBLJ when you need tunable end-of-stroke deceleration instead of a fixed bumper, or over the MBLC if your machine requires on-the-fly stroke length trimming.
Remember that neither the rear travel stopper nor the tunable cushion acts as a lock; the rod will drift if air pressure drops, so fit an external locking mechanism 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, match the 50 mm bore, 150 mm stroke, 20 mm adjust code, G1/4 port, PT thread form, and the -S magnet specification exactly.
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 MBLCJ50X150-20S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa, which is the cylinder's operating pressure limit.
The -20 code provides a rear travel stopper that trims the usable stroke window down to 130-150 mm; it sets the end position but does not lock the load. The adjustable air cushion is a separate screw-tunable valve at each end that controls deceleration to prevent hard impacts. The -S magnet works with CMSG reed and DMSG/EMSG electronic sensors for position feedback.
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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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