Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20 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 20mm for a usable window of 80–100mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke100 mm
- Adjustable80–100 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20
The AirTAC MBLCJ25X100-20 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. A G1/8 port drives a Ø10 mm rod to deliver 245 N push and 206 N pull force at 0.5 MPa. The rear stopper trims up to 20 mm of travel, creating a usable 80-100 mm stroke window for precise end-position tuning.
Twin screw-tunable cushions decelerate the piston near each end cover, absorbing kinetic energy to prevent impact damage—unlike the fixed rubber bumper found on the base MBLJ. This unit lacks a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors. The riveted rolling-packed barrel and grease-retaining two-way piston seal maintain consistent friction across the 30-800 mm/s speed range.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 80–100 mm (trim 20 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 MBLCJ25X100-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | Nominal stroke length in mm. |
| -20 | 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 MBLCJ25X100-20 Is Used
PCB Drill Stroke Trimming
Trims the 20 mm rear stroke window to align a 245 N push force for precise depth control on automated PCB drilling spindles, using the tunable cushion to prevent harsh end-impacts.
Textile Loom Guide Deceleration
Leverages the dual adjustable air cushions to smoothly slow the 100 mm travel of a yarn guide carriage, protecting the riveted aluminum end covers from high-frequency loom vibration.
Label Applicator Tamping
Applies 206 N pull force to retract a tamping pad after label placement, fine-tuning the 80-100 mm end position to adapt to varying box widths on a packaging line.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-20 the Right Cylinder?
Stepping down to the 20 mm bore drops thrust to 157 N push (0.5 MPa), while moving up to the 32 mm bore raises it to 402 N push—choose this 25 mm bore for light-duty cycling under 50 kgf max (1.0 MPa). Choose the MBLCJ over the MBLJ when your moving mass requires tunable deceleration rather than a fixed bumper impact, or pick the MBLC if you need fixed standard stroke lengths without rear adjustment.
Remember that the rear adjuster is a travel stop, not a mechanical lock, and the air cushion only decelerates; neither holds a load statically without live air pressure. Mounting is limited to Basic, FA flange, or LB foot styles (no SDB pivot or back-cover options exist). To replace this exact SKU, match the 25 mm bore, 100 mm stroke, 20 mm adjust code, G1/8 PT thread, and no-magnet configuration.
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 MBLCJ25X100-20 FAQ
At 0.5 MPa it provides 245 N push and 206 N pull force; at 0.7 MPa push increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa. The 20 mm rear adjuster allows you to trim the 100 mm stroke down to an 80 mm usable end-position window.
This specific SKU has no built-in magnet (-S omitted), so it cannot mount AirTAC CMSG, DMSG, or EMSG sensors. Additionally, the adjustable air cushion only regulates end-of-stroke deceleration and the rear adjuster acts as a travel stop; neither component locks or holds a load without continuous 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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