You are here: Home » Products » Safety Chuck » Safety Chuck


Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

Safety Chuck

*Safety chuck is a mechanical component used in various industries to safely support and hold the shafts or cores of rolls of material during processing or converting operations.
It has standard type, but different design is also welcome for making!
  • STO-STW / FLO-FLW (28-35-50 or other types)

  • Steel

  • Depend on Design

  • 10-12 Days for Normal Order, Hurry Order is Negotiable

  • Wooden Box / Paper Box / Paper tube / Bubble Film

  • By Sea / By Air / By Train / By Fedex or other Express way

  • ISO9000/CE/ROHS/Certificate of Origin

  • Technical Video Support

  • T/T/Credit Card/Paypal.....


PDF Export

   --1. Safety Chuck Overall Introduction:

13 (2)

*Safety Chuck functions as a connector of the Airshaft. It could help to provide accurate and simple connection to Air shaft. To avoid the tighten or loosen during the working of the Air expanding shaft.

The primary function of a safety chuck is to provide secure and reliable support while allowing for easy loading and unloading of the rolls. They provide rotational support, allowing for the unwinding or rewinding of the material during various processing operations.

The Safety Chuck have 2 types, and following content will help readers to understand it clearly.

Each type of the Safety chuck have different dimensions, 

28type, 35type, 50type. You will see the drawings in the Chapter 3.

    --2. Safety Chuck Type

    Safety chucks typically consist of two similar chuck halves, each mounted on opposite ends of a machine or equipment. 

    In normal case, one chuck has the shaft and another not have the transmission shaft.

   The chuck halves are designed to interlock when engaged, providing a secure grip on the shaft or core. The interlocking mechanism can be actuated manually or automatically, depending on the specific design and requirements.

    The type of the Safet Chuck is devided into 2 types. 

    The first one is Foot mounted Safety Chuck. (also known as Seated type Safety Chuck)

    The second type is Flange type Safety Chuck.


(1) Seated Type Safety Chuck (foot mounted)


(1) Seated Type Safety ChuckExample



(2) FlangeType Safety Chuk

9 (2)

(2) FlangeType Safe Chuck Example


       If you still have question of the type of your Safety Chuck, You can send the photo to Sales:

     --3. Safety Chuck Dimension Type:

       The Safety Chuck as standard dimenion, Customers could select the according to the following dimension drawing.

        (Note: Drawing Dimension accept Revisement or Tailor Making)


        (1) 28 Type Safety Chuck

型号 Model FLO/FLW 28--Flange STO/STW 28--Seated

Maximum Weight Load Ability

800kg 800kg
极限扭矩 Maximum Torque kg/m (N/m) 18 (180) 18 (180)

Airshaft Square Dimension

 (enter inside safety chuck)

22-30mm 22-30mm
卡盘自重 Self Net Weight 18kg 18kg

Safety Chuck 28 type Seat Type

      Safety Chuck 28 type Flange Type


        (2) 35 Type Safety Chuck

型号 Model FLO/FLW 35--Flange STO/STW 35--Seated

Maximum Weight Load Ability

1600kg 1600kg
极限扭矩 Maximum Torque kg/m (N/m) 35 (350) 35 (350)

Airshaft Square Dimension

 (enter inside safety chuck)

30-40mm 30-40mm
卡盘自重 Self Net Weight 25kg 25kg

Safety Chuck 35 type Seat Type

Safety Chuck 35 type Flange Type

       (3) 50 Type Safety Chuck

型号 Model FLO/FLW 50--Flange STO/STW 50--Seated

Maximum Weight Load Ability

2800kg 2800kg
极限扭矩 Maximum Torque kg/m (N/m) 110 (1100) 110 (1100)

Airshaft Square Dimension

 (enter inside safety chuck)

40-50mm 40-50mm
卡盘自重 Self Net Weight 50kg 50kg

Safety Chuck 50 type Seat Type

Safety Chuck 50 type Flange Type


        --4. Advantage of Safety Chuck:


Incorporating safety chucks into industrial processes offers several benefits, including:

Enhanced Safety: By securely holding the core of material rolls, safety chucks minimize the risk of accidents caused by roll movement or slippage, ensuring a safer working environment.

Improved Efficiency: The stable and controlled unwinding of materials facilitated by safety chucks leads to enhanced productivity, reduced downtime, and improved overall operational efficiency.

Versatility: Safety chucks are available in various sizes and configurations, making them adaptable to different types of machinery and material handling requirements.

Easy Installation and Adjustment: Safety chucks are designed for ease of use, allowing for quick installation and adjustments to accommodate different core sizes.

    ----5. Maintenance and Care for Safety Chucks

Proper maintenance and care are essential for the longevity and optimal performance of safety chucks. Here are some maintenance tips:

Regular Inspection: Periodically check the condition of safety chucks, looking for any signs of wear, damage, or misalignment.

Lubrication: Apply appropriate lubricants to ensure smooth operation and prevent excessive friction.

Cleaning: Keep safety chucks clean from dust, debris, or any material residues that may affect their performance.

Adjustments: Regularly inspect and adjust the clamping force to maintain optimal gripping on the material cores.

    ----6. Safety Guidelines for Working with Safety Chucks

When working with safety chucks, it is crucial to follow safety guidelines to prevent accidents and ensure a secure working environment. Some key guidelines include:

Proper Training: Ensure that operators receive adequate training on the safe operation and maintenance of safety chucks.

Wear Protective Gear: Operators should wear appropriate personal protective equipment (PPE), including gloves and safety glasses, to minimize the risk of injury.

Secure Lockout/Tagout Procedures: Implement lockout/tagout procedures to prevent accidental startup of machinery during maintenance or servicing.

Regular Inspections: Regularly inspect safety chucks for any signs of wear, damage, or malfunction and address any issues promptly.

    ---- 7. Common Troubleshooting Tips

In case of any issues with safety chucks, consider the following troubleshooting tips:

Loose Grip: If the safety chucks are not gripping the core properly, check if the clamping force requires adjustment or if there are any obstructions preventing proper contact.

Slippage: If the material is slipping during operation, ensure that the safety chucks are tightened adequately, and check for any contamination or damage on the clamping surfaces.

Uneven Tension: In cases of uneven tension in the material, verify that the safety chucks are adjusted symmetrically and that the roll is centered.

       --8. More about us as a Safety Chuck Supplier:

          We, R.J Machinery is confident to say we are a reliable Air shaft and Safety Chuck factory in China and can make large quantity exporting supply and lower quantity customerization! 


           Our goal is to make customer feel satisfied about the quality and price of the Safety Chuck and Airshaft!        

           We welcome if you would like to have an online factory tour!

           It only take 1 minute!

           This is the video of Our Factory will fully equipped Airshaft and Aluminum Roller Manufactuering Devices.

Airshaft wechat

Using wechat and Scan this code to talk with Airshaft Sales!

Mr Terrence

Roller roller supplier whatsapp

Using wechat and Scan this code to talk with Airshaft Sales!

Mr Terrence