Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75 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 MBLCJ20X150-75
The AirTAC MBLCJ20X150-75 is a compact double-acting mini cylinder featuring a rear travel stopper and tunable air cushions at both ends. The 75 mm adjuster trims the 150 mm stroke, yielding a usable extension window of 75 to 150 mm. Delivering 157 N push and 132 N pull at 0.5 MPa, it suits moderate-force positioning tasks. The adjustable cushion slows the piston near the end covers, absorbing kinetic energy to prevent harsh impacts.
This SKU omits the built-in magnet, meaning it cannot host CMSG, DMSG, or EMSG position sensors. The riveted aluminum barrel and 20 µm hard-chrome plated Ø8 mm carbon-steel rod provide durable service. Note the rear stopper sets the travel end but does not lock the load; external mechanics must hold position when air is removed. Overall length extends by the adjustment dimension.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75 |
|---|---|
| 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 MBLCJ20X150-75
| 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 MBLCJ20X150-75 Is Used
PCB Depaneling Saw Feed
Uses the 75-150 mm stroke window to set the exact cut depth on a routing saw, while the air cushion protects the end covers from the 157 N thrust during rapid feed.
Label Dispenser Tamp Action
Tunes the rear stopper to tamp labels at varying protrusions without re-mounting the cylinder, relying on the 132 N pull force for smooth retraction.
Small Parts Ejector Chute
Decelerates the piston near the end of the 150 mm stroke to prevent parts from bouncing out of the collection chute, avoiding the abrupt stop of a fixed bumper.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-75 the Right Cylinder?
Step down to a 12 mm bore for lighter duties, or up to a 25 mm bore (245 N push at 0.5 MPa) if your payload exceeds 157 N. Choose this MBLCJ over the MBLJ if your application requires screw-tunable end-of-stroke deceleration rather than a fixed rubber bumper. Compared to the MBLC, this model adds the rear stroke adjuster for variable travel limits.
The 75 mm adjustment screw acts as a hard mechanical stop, not a brake, and the air cushion only decelerates; neither holds position without continuous air pressure. Mounting is restricted to Basic, FA flange, or LB foot styles—no SDB pivot or back-cover options exist. For exact replacements, match the 20 mm bore, 150 mm stroke, 75 mm adjust code, G1/8 port, PT thread, and lack of an S magnet. At 150 mm stroke, the small Ø8 mm rod is susceptible to side-loading; use an external guide to prevent bending.
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 MBLCJ20X150-75 FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull force. At 0.7 MPa, push increases to 220 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The 75 mm rear adjuster allows you to vary the usable stroke window from 75 mm up to the full 150 mm.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches. The rear screw is a travel stop that sets the end position, and the adjustable air cushion only regulates deceleration speed; neither component mechanically locks or holds the load when air pressure is removed.
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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