Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75S is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 150mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 75–150mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke150 mm
- Adjustable75–150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- 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 MBLCJ20X150-75S
The AirTAC MBLCJ20X150-75S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. With a 20mm bore, it delivers 157N push and 132N pull force at 0.5 MPa. The rear stopper trims up to 75mm of travel, yielding a usable stroke window of 75-150mm for precise positioning. The integrated -S magnet enables CMSG, DMSG, or EMSG solid-state sensor switches to track rod position.
Distinguishing the two adjustment mechanisms is critical: the rear stopper sets the travel end-position, while the screw-tunable cushion regulates end-of-stroke deceleration to protect the end covers. Neither component locks the load in place. The riveted rolling-packed barrel and 20um hard-chrome plated carbon-steel rod provide durable service, though the 8mm rod diameter on this 150mm stroke warrants an external guide to prevent bending under side loads.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 75–150 mm (trim 75 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 300 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 MBLCJ20X150-75S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -75 | 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 MBLCJ20X150-75S Is Used
PCB Depaneling Saw
Feeds a circular saw blade at a controlled rate using the 75-150mm stroke window, relying on the adjustable air cushion to brake the 157N thrust smoothly at the cut endpoint.
Dispenser Head Positioning
Trims the exact retract distance of a fluid dispensing nozzle on an adhesive applicator, using the rear stopper to set the precise 75mm minimum travel limit.
Small Parts Ejector
Pushes molded plastic parts out of a machining fixture at speed, using the tunable cushion to prevent the 8mm rod from slamming the end cover at the 150mm mark.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75S the Right Cylinder?
If you need less force, the 20mm bore is the smallest available in this series, so stepping down is not an option without changing platforms. Stepping up to the 25mm bore increases output to 245N push at 0.5 MPa. Choose this MBLCJ over the MBLJ for tunable end-deceleration instead of a fixed rubber bumper, or over the MBLC if you need the 75mm rear stroke-trimming window. For replacements, match the 20mm bore, 150mm stroke, 75mm adjust code, G1/8 port, PT thread, Basic mounting, and the S magnet. Because the stroke is 150mm, the 8mm rod is susceptible to bending under side loads—use an external guide rail.
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 MBLCJ20X150-75S FAQ
At 0.5 MPa, this 20mm bore cylinder provides 157N push and 132N pull force. At 0.7 MPa, push increases to 220N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The rear adjuster physically stops the piston to trim travel within the 75-150mm window, while the adjustable air cushion uses screw-tunable trapped air to decelerate the load near the end covers. Neither mechanism locks or holds the load pneumatically; live air is required to maintain 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.
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