Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-30
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 60mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 30–60mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke60 mm
- Adjustable30–60 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-30
The AirTAC MBLCJ20X60-30 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 allows you to trim up to 30 mm of travel, creating a precise 30-60 mm usable stroke window for applications requiring exact end-of-stroke positioning.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air cushions to decelerate the piston near each end cover, absorbing kinetic energy for faster cycling without shock damage. The Ø8 mm hard-chrome plated carbon steel rod and riveted rolling-packed barrel keep the body lightweight for tight spaces. Note that this specific SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-30 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 60 mm |
| Adjustable window | 30–60 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 MBLCJ20X60-30
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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 MBLCJ20X60-30 Is Used
PCB Depaneling Saw Feed
Uses the 30-60 mm adjustable window to set the exact cutting depth on a depaneling router, while the air cushion prevents jarring stops that could fracture delicate printed circuit boards.
Micro-Dispenser Valve Trigger
Actuates a precision fluid valve with 157 N of push force, relying on the tunable end-of-stroke cushion to prevent splashing when dispensing two-part epoxies.
Lightweight Wire Guide Forming
Pushes a wire-bending jig in a cable assembly machine, using the rear stopper to dial in the exact 45 mm bend limit without needing complex programmable stops.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-30 the Right Cylinder?
Choose this 20 mm bore when you need exact 30-60 mm travel with controlled deceleration. If your application requires less force, there is no smaller bore in the MBLCJ range. If you need more power, stepping up to the 25 mm bore increases push force to 245 N at 0.5 MPa. The rear adjuster sets the travel end point, while the adjustable cushion only controls deceleration speed; neither component mechanically locks or holds the load in place.
Mounting is limited to Basic, FA flange, or LB foot styles; this series does not support SDB pivots or back-cover options. Because the overall length equals A + 2 x stroke + adjust, verify your spatial envelope. For replacements, match the 20 mm bore, 60 mm stroke, 30 mm 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 MBLCJ20X60-30 FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa, with an operating pressure range of 0.15 to 1.0 MPa.
This specific SKU does not have a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors. The 30 mm rear adjuster is a mechanical travel stop that sets the end position, and the air cushion controls deceleration; neither feature locks or holds the rod in place under load.
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