Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X125-100
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X125-100 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 125mm nominal stroke and a rear adjustable-stroke stopper — trim up to 100mm for a usable window of 25–125mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke125 mm
- Adjustable25–125 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable air cushion (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X125-100
The AirTAC MBLCJ40X125-100 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and adjustable air cushions at both ends. It delivers 628N of push force at 0.5 MPa. The rear stopper allows you to trim up to 100mm of travel, creating a usable stroke window of 25-125mm for precise positioning. A 125mm stroke suits mid-range transfer and indexing tasks.
This model uses a G1/4 port and a Ø16 hard-chrome plated carbon steel rod. The riveted rolling-packed barrel and grease-retaining piston seal ensure long service life. Note that this specific SKU lacks a built-in magnet, meaning it cannot accept CMSG, DMSG, or EMSG position sensors. The adjustable cushioning allows you to tune end-of-stroke deceleration for heavier loads, protecting the end covers from impact damage.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X125-100 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X125-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 25–125 mm (trim 100 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 MBLCJ40X125-100
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×125 | Nominal stroke length in mm. |
| -100 | 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 MBLCJ40X125-100 Is Used
CNC Lathe Bar Feed
Pushes raw bar stock into the collet chuck with 628N force, using the 25-125mm adjustable window to dial the exact protrusion length without moving hard stops.
Bottling Line Diverter
Routes glass containers at high speed, relying on the tunable air cushions to prevent sudden jolts that could shatter the product at the end of the 125mm stroke.
Pallet Strap Tensioner
Applies 528N of pull force to tension packaging straps around goods, using the adjustable rear stopper to set the exact strap tightness limit.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X125-100 the Right Cylinder?
When sizing this 40mm bore cylinder, stepping down to the 32mm bore yields 402N push force at 0.5 MPa, while stepping up to the 50mm bore provides 981N. Choose this MBLCJ over the MBLJ if your application requires tunable end-deceleration instead of a fixed rubber bumper, or over the MBLC if you need to trim the travel window. The rear adjuster is a travel stop, and the cushion only decelerates; neither holds the load, so use an external lock for position holding. Mounting is limited to Basic, FA, or LB; no SDB or back-cover options exist. For a direct replacement, match the 40mm bore, 125mm stroke, 100mm adjust code, PT thread, and no 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 MBLCJ40X125-100 FAQ
At 0.5 MPa, this 40mm bore cylinder provides 628N push force and 528N pull force. At 0.7 MPa, the push force is 880N. The theoretical maximum force is 128 kgf at 1.0 MPa.
The rear adjuster lets you trim up to 100mm off the 125mm nominal stroke, giving a usable travel window of 25-125mm. This adjuster is a travel stop, not a lock. The adjustable air cushion separately tunes end-of-stroke deceleration to protect the covers, but neither mechanism holds the load in place without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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