Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-30
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-30 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 30mm for a usable window of 120–150mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke150 mm
- Adjustable120–150 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 MBLCJ20X150-30
The AirTAC MBLCJ20X150-30 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. The rear stopper lets you trim up to 30 mm of travel, creating a usable stroke window of 120 to 150 mm. This is ideal for fine-tuning the end position of a packaging pusher without machining new mountings. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal keep friction and wear low in continuous duty.
Unlike the base MBLJ which relies on a fixed rubber bumper, this MBLCJ variant uses screw-tunable end-of-stroke deceleration to absorb kinetic energy, protecting the end covers during faster or heavier moves. The Ø8 mm carbon-steel rod features 20 μm hard-chrome plating to resist scuffing. Because this specific SKU lacks the -S magnet code, it cannot accept an AirTAC CMSG, DMSG, or EMSG position sensor. The adjuster acts purely as a mechanical travel stop and does not lock or hold the load in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-30 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 120–150 mm (trim 30 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 MBLCJ20X150-30
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -30 | 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 MBLCJ20X150-30 Is Used
Thermoformer Feed Pusher
Uses the 120-150 mm adjustable window to dial the exact feed length of plastic sheets into a thermoforming oven, while the air cushion prevents the 157 N push force from slamming the rod at high speed.
PCB Depaneling Saw Guide
Trims the approach stroke precisely to protect a circular saw blade, relying on the tunable deceleration to stop the 8 mm rod smoothly without bouncing the fixture.
Textile Loom Tension Arm
Adjusts the travel window to maintain yarn tension arms within a strict 30 mm range, using the cushion to absorb rapid directional changes without wearing the end covers.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X150-30 the Right Cylinder?
This 20 mm bore provides 157 N push at 0.5 MPa. If your application requires less force, you can step down to the smaller 16 mm variant, but stepping up to the 25 mm bore yields 245 N push at 0.5 MPa, offering a significant margin for heavier friction. Choose the MBLCJ over the MBLJ when your cycle speed demands tunable pneumatic deceleration rather than a fixed bumper, or over the MBLC if you need on-the-fly stroke trimming. Remember that the rear adjuster sets the travel end and the cushion only decelerates; neither holds the load, so external locking is required for safety during maintenance. Mounting is limited to Basic, FA (flange), or LB (foot) brackets—there is no back-cover or SDB pivot option. To match this SKU for replacement, verify: 20 mm bore, 150 mm stroke, 30 mm adjust code, G1/8 port, PT thread, no magnet, and basic mounting.
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 MBLCJ20X150-30 FAQ
This 20 mm bore double-acting cylinder delivers 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and a maximum of 32 kgf at 1.0 MPa. It uses a G1/8 port with PT (tapered) threading and an M8x1.25 rod-end thread.
Because this SKU lacks the -S code, it has no built-in magnet and cannot accept CMSG, DMSG, or EMSG position sensors. The 30 mm rear adjuster is a mechanical travel stop that sets the end position (usable window 120-150 mm); it does not lock or hold the load. The air cushion only tunes deceleration speed.
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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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