Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-40S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø63mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 135–175mm. Adjustable air cushion (both ends).
- BoreØ63 mm
- Stroke175 mm
- Adjustable135–175 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-40S
The AirTAC MBLCJ63X175-40S is a compact double-acting mini round cylinder featuring a rear travel stopper that trims up to 40 mm, yielding a usable reach window of 135-175 mm. It delivers serious thrust for its footprint, pushing 1558 N and pulling 1457 N at 0.5 MPa. A built-in magnet (-S) enables position detection using CMSG reed or DMSG/EMSG solid-state switches.
Distinguishing it from the fixed-bumper MBLJ, this unit integrates an adjustable air cushion at both ends to tune end-of-stroke deceleration, absorbing kinetic energy to protect the end covers during heavy moves. The riveted aluminum barrel and 20 um hard-chrome plated carbon-steel rod withstand demanding cycles. Remember the rear stopper sets the end position but does not hold the load; external guides are recommended for side-load stability.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-40S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø63 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 135–175 mm (trim 40 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 500 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 MBLCJ63X175-40S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 63 | Bore size in mm. |
| ×175 | 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 MBLCJ63X175-40S Is Used
Injection Mold Ejection
Provides 1558 N of push force at 0.5 MPa to eject dense plastic parts from injection molds, using the 40 mm rear stroke trim to precisely set the ejector return depth.
Heavy Press Tonnage
Tunes the dual-end air cushion to smoothly decelerate a 318 kgf maximum press load, preventing end-cover damage during rapid stamping operations.
Pallet Strapping Press
Cycles a 175 mm stroke to tension and seal heavy pallet strapping, relying on the DMSG electronic sensor to verify full extension before the sealing head activates.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ63X175-40S the Right Cylinder?
Stepping down from this 63 mm bore, the 50 mm variant offers 981 N push at 0.5 MPa for lighter loads, while stepping up is constrained as 63 mm is the largest in the family. Choose the MBLCJ over the MBLJ when your moving mass requires tunable pneumatic damping rather than a fixed rubber bumper, or pick the MBLC if you need fixed stroke lengths without a rear adjuster. The rear adjuster and the air cushion regulate travel and speed, but neither acts as a mechanical lock—rod drift occurs without live air pressure. Mounting is limited to Basic, FA flange, or LB foot brackets (no SDB pivot or back-cover options), and the overall length equals A + 2 x 175 + 40. Replacement parts must match the 63 mm bore, 175 mm stroke, 40 mm adjust code, G1/4 port, PT threads, and the -S magnet.
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 MBLCJ63X175-40S FAQ
At 0.5 MPa, it pushes 1558 N and pulls 1457 N. At 0.7 MPa, push increases to 2181 N, with a theoretical max of 318 kgf at 1.0 MPa. The 40 mm rear adjuster allows you to trim the 175 mm stroke down to a 135 mm usable window.
The -S magnet works with CMSG, DMSG, and EMSG sensors for position feedback, while the adjustable air cushion only tunes end-of-stroke deceleration. Neither the cushion nor the rear stroke adjuster acts as a lock; the cylinder will drift without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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