Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40 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 40mm for a usable window of 20–60mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke60 mm
- Adjustable20–60 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40
The AirTAC MBLCJ20X60-40 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 push and 132 N pull force at 0.5 MPa. The 40 mm rear adjustment sets a usable travel window of 20 to 60 mm, letting you fine-tune the end position without machining new mounts.
This SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors. The adjustable air cushion uses screw-tunable needle valves to decelerate the load before impact, protecting the end covers where a fixed rubber bumper would fail. Remember the rear stopper sets the travel end but does not lock the load; the cushion only controls speed.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 60 mm |
| Adjustable window | 20–60 mm (trim 40 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 MBLCJ20X60-40
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | Nominal stroke length in mm. |
| -40 | 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 MBLCJ20X60-40 Is Used
PCB Edge Guiding
Provides 157 N of push force to align delicate printed circuit boards on a conveyor, using the 20-60 mm stroke window to dial in the exact stop position without moving the cylinder body.
Light Parts Ejection
Ejects small plastic molded parts from a tool cavity, relying on the adjustable air cushion to brake the 8 mm rod smoothly before it strikes the end cover at high cycle rates.
Thin Film Sealing
Actuates a sealing jaw for packaging film, where the 132 N pull force retracts the tool and the rear stopper ensures the jaw opens exactly to a 20 mm gap for product loading.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40 the Right Cylinder?
Choose this 20 mm bore if your application requires roughly 157 N of push force at 0.5 MPa. If you need less force, the adjacent smaller mini cylinder options lack the standard bore size below 20 mm in this series, making this the most compact choice. If your fixture demands higher thrust, stepping up to the 25 mm bore yields 245 N push and 206 N pull at 0.5 MPa. Compared to the MBLJ, this MBLCJ variant uses tunable air cushions instead of a fixed bumper for heavier or faster cycling. When ordering a replacement, verify the 60 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and lack of an S magnet. Mounting is limited to Basic, FA, or LB; no SDB or back-cover options exist.
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 MBLCJ20X60-40 FAQ
At 0.5 MPa it provides 157 N push and 132 N pull force. At 0.7 MPa the push force is 220 N, with a maximum theoretical output of 32 kgf at 1.0 MPa. The 40 mm rear adjuster allows you to trim the 60 mm stroke down to a 20 mm minimum, creating a usable 20-60 mm travel window.
This specific SKU lacks the -S magnet, so it cannot accept CMSG reed or DMSG/EMSG electronic sensors. The rear mechanism is a travel stop that sets the end position, not a lock; it will not hold the load without live air pressure. The adjustable air cushion only controls end-of-stroke deceleration.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Adjustable-Stroke Cylinders
Request a Quote for Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.