Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X30-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X30-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 30mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 20–30mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke30 mm
- Adjustable20–30 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 MBLCJ20X30-10
The AirTAC MBLCJ20X30-10 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. With a 20mm bore, it delivers 157N push and 132N pull force at 0.5MPa. The rear stopper allows you to trim up to 10mm of travel, creating a precise 20-30mm usable stroke window. This is ideal for applications requiring exact end-positioning without mechanical spacers. The riveted rolling-packed barrel and 20um hard-chrome plated carbon-steel rod ensure durability in tight spaces.
Unlike the base MBLJ which relies on a fixed rubber bumper, this MBLCJ variant uses screw-tunable end-of-stroke cushioning to decelerate heavier or faster moving loads smoothly, protecting the end covers from impact damage. Note that this specific SKU lacks a built-in magnet (-S), meaning it cannot support CMSG, DMSG, or EMSG position sensors. The rear travel stopper sets the end position, while the cushion controls deceleration; neither is designed to lock or hold the load in place without continuous air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X30-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X30-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 30 mm |
| Adjustable window | 20–30 mm (trim 10 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 MBLCJ20X30-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×30 | Nominal stroke length in mm. |
| -10 | 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 MBLCJ20X30-10 Is Used
PCB Router Z-Axis Lift
Provides 157N of push to raise a light spindle carriage, using the 20-30mm stroke window to dial in the exact cutting depth and the air cushion to prevent jarring stops at the top of travel.
Micro-Dispenser Dosing
Drives a small pneumatic syringe, using the 10mm rear stroke trim to fine-tune the dispensed volume precisely while the tunable cushion softens the retraction stop to avoid splashing.
Small Part Ejector
Pushes lightweight plastic components out of a mold cavity, relying on the 132N pull force to retract the rod quickly and the adjustable end-cushioning to prevent marking the parts.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X30-10 the Right Cylinder?
This 20mm bore generates 157N of push force at 0.5MPa. If your application requires less force, there is no smaller bore in this series, but stepping up to the 25mm bore yields 245N of push force for heavier resistance. Choose the MBLCJ20X30-10 when you need exact short-stroke positioning combined with tunable end-deceleration. If you do not need the air cushion, the MBLJ version offers the same stroke adjustment with a fixed bumper. Remember that the rear adjuster is a travel stop, not a mechanical lock, and the cushion only decelerates; neither will hold a load statically without live air pressure. Mounting is limited to Basic, FA flange, or LB foot styles, as this series omits the SDB pivot and back-cover options. For a direct replacement, match the 20mm bore, 30mm stroke, 10mm adjust code, G1/8 port, PT thread, and confirm no magnet is required.
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 MBLCJ20X30-10 FAQ
At 0.5MPa, this 20mm bore cylinder provides 157N of push force and 132N of pull force. At 0.7MPa, the push force increases to 220N. The maximum theoretical force is 32kgf at 1.0MPa.
No, this specific SKU lacks the -S code, meaning no magnet is built into the piston. You cannot mount CMSG, DMSG, or EMSG switches for position detection. You would need the MBLCJ20X30-10S variant to add electronic or reed sensor tracking.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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