Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 100mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 60–100mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke100 mm
- Adjustable60–100 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40
The AirTAC MBLCJ25X100-40 is a compact double-acting aluminum mini cylinder featuring a rear travel stopper and tunable end-of-stroke deceleration. The 40 mm adjuster trims the rear position, yielding a usable extension window of 60 to 100 mm. Delivering 245 N push and 206 N pull at 0.5 MPa, it drives medium-duty positioning tasks. The riveted rolling-packed barrel and 20 µm hard-chrome plated carbon-steel rod withstand harsh shop environments.
Unlike the fixed rubber bumper on the base MBLJ, this SKU uses a screw-adjustable air cushion at both ends to absorb kinetic energy, protecting the end covers during faster cycling. Because this specific configuration lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor. The rear stopper sets the end position; it does not lock the load, so external holding is needed if air drops.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 60–100 mm (trim 40 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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 MBLCJ25X100-40
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MBLCJ25X100-40 Is Used
PCB Drill Bit Changer
Extends 60-100 mm to shuttle drill bits into the spindle; the adjustable air cushion prevents micro-fractures on the toolholder during rapid retraction.
Label Applicator Tamp
Pushes with 245 N at 0.5 MPa to tamp labels onto curved bottles, using the rear 40 mm adjuster to dial in the exact contact depth without reprogramming the PLC.
Textile Yarn Guide
Cycles continuously at high speed to shift the yarn guide; the tunable cushion slows the 100 mm travel just before the end cover to stop vibration-induced thread breakage.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40 the Right Cylinder?
Stepping down to the Ø20 bore reduces output to 157 N push at 0.5 MPa, which may stall heavier tooling, while stepping up to the Ø32 bore yields 402 N for high-resistance moves. Choose this MBLCJ over the MBLJ when your 100 mm stroke requires controlled deceleration rather than a hard bumper impact, or over the MBLC if you need to fine-tune the 60-100 mm end position. The Ø10 mm rod on a 100 mm stroke can experience side-load bending; use an external guide to prevent binding.
Mounting is limited to Basic, FA flange, or LB foot—there is no SDB pivot or back-cover option on this series. The exact replacement match is a 25 mm bore, 100 mm stroke, 40 mm adjust code, G1/8 port, PT thread, without a 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 MBLCJ25X100-40 FAQ
At 0.5 MPa it provides 245 N push and 206 N pull; at 0.7 MPa it provides 343 N push, with a theoretical maximum of 50 kgf at 1.0 MPa. The 40 mm rear adjuster allows you to vary the usable stroke window from 60 mm to 100 mm.
No. This specific SKU lacks the -S code, meaning no internal magnet is fitted, so CMSG reed or DMSG/EMSG electronic switches cannot detect rod position. You would need the MBLCJ25X100-40S variant for sensor capability.
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