Expanding Core Shafts

August 17, 2025

**Product Specifications**
  • Model NO.: 3 in or 6 in
  • Load Type: Central Spindle
  • Journal Diameter Dimensional Accuracy: IT01-IT5
  • Shaft Shape: Real Axis
  • Journal Surface Roughness: 2.5-0.63μm
  • Warranty: 1 Year
  • Delivery Time: 20-25 Work Days
  • Transport Package: Paper Cores or Wooden Box
  • Origin: China
  • Material: Stainless Steel or Aluminum
  • Stiffness & Flexibility: Stiffness / Rigid Axle
  • Axis Shape: Straight Shaft
  • Appearance Shape: Round
  • Model Type: Key Type or Ball Type
  • Width Options: 15mm, 20mm, 30mm, 35mm, 40mm, 45mm, 50mm
  • Trademark: HY/huiyuan
  • Specification: 3''
  • HS Code: 8482800000
Product Description
Expanding Core Shafts
Expanding Core Shafts


XC Air Differential Shaft (Friction shaft, slip differential shaft)
3'' outer diameter: φ75 Expand diameter: φ78mm
  1. Applicable tube ID: φ76 ± 0.2mm
  2. Inside diameter (ID): φ45mm
  3. Differential ring: standard width 40mm, other widths: 30, 40, 45mm
Piston standard number: 8pcs, other options: 6, 10, or 12pcs.
Suitable for packaging film and common film slitting rewinding (8 pistons).
12 pistons are suitable for lithium battery pole pieces, diaphragm slitting.

Central pressure shaft, pneumatic tightens, pneumatic differential slip. High accuracy and performance. Wide range of tension control.
Ideal for full automatic transfer rewind, ensuring the core doesn't slacken off.
Fits the short axis, winding excellence.
Achieve extremely low tension-friction, ideal for the thinnest (10U) PET film, electronic film splitting.
Successfully used in lithium battery diaphragms, lithium battery pole pieces, power battery pole pieces, low tension PET film, and electronic films.

DS Air Differential Shaft
3'' outer diameter: φ75 Expand diameter: φ78mm
1) Applicable tube ID: φ76 ± 0.2mm
2) Inside diameter (ID): φ45mm
3) Standard width: 50mm

Central pressure shaft, pneumatic tightens, pneumatic differential slip. High accuracy and performance. Wide range of tension control.
Ideal for full automatic transfer rewinding, ensuring the core doesn't slacken off.
Especially suitable for flexible packaging composite film slitting and rewinding.

GZ Air Differential Shaft
3'' outer diameter: φ75 Expand diameter: φ78mm
1) Applicable tube ID: φ76 ± 0.2mm
2) Inside diameter (ID): φ60mm
3) Standard width: 25mm
Can form central pressure type, pneumatic side compression type, mechanical side pressure type differential shaft. Center pneumatic friction torque has small mechanical loss, and can achieve accurate proportion to the size of the torque, realizing tension from small to large with high accuracy control.
  1. Differential shaft slitting coil width as narrow as 5mm, other sizes available upon request.
  2. Core independent design consists of a 60mm diameter solid steel base, providing high strength and low deflection. Multiple bladder base shafts for highest strength and lowest deflection.
  3. Suitable for high-speed slitting machines, heavy-duty and large-diameter material slitting. Ideal for paper roll slitting, adhesive tape industry, etc.
  4. Equipped with sliding rings for easy coil handling, making even 3-meter-long shaft rolling easier.
  5. ZJZ shaft ensures GZZ's excellent performance, capable of securely gripping hard tube cores outside of paper tubes.

JS Air Differential Shaft
3'' outer diameter: φ75 Expand diameter: φ78mm
1) Applicable tube ID: φ76 ± 0.2mm
2) Inside diameter (ID): φ50mm
3) Standard width: 15, 20, 25, 30, 35mm, other sizes available upon request.

6'' outer diameter: φ150 Expand diameter: φ156mm
1) Applicable tube ID: φ152.4 ± 0.2mm
2) Inside diameter (ID): φ60mm
3) Standard width: 50mm, other sizes available upon request.

Can manufacture central pressure type, pneumatic side compression type, and high-performance differential slip shafts. Achieve lower mechanical loss, accurate torque, and wide-range tension control with great precision. Widely applied; key teeth can fit any tube core.
Expanding Core Shafts
Expanding Core Shafts
Expanding Core Shafts
FAQ
1. Q: Are you a factory or trading company?
A: We are a factory established in 2012. Specialized in air shafts, friction air shafts, aluminum rollers, and printing machinery parts. We provide expert service including design, manufacturing, installation, and maintenance.
2. Q: What is the payment term?
A: T/T, L/C, Western Union, and PayPal are available. Usually, full payment is required upfront or a 30% deposit with the balance paid before delivery.
3. Q: What is your delivery time?
A: It depends on the order quantity and requirements. Generally, it takes about 20 workdays after receiving the deposit for regular orders.
4. Q: Which port do you use for loading?
A: Shenzhen Port is recommended as it is the closest to us.
5. Q: Can I track my order status?
A: Yes. We will send you updates and photos at different stages of production. You will be informed in real-time.

Contact:
Tony Chan
Tel: (+86) 769 8788 8135
Fax: (+86) 769 8634 6382
Phone: (+86) 158 9991 1321

Our factory can design and manufacture non-standard products based on customer requirements.
Feel free to contact us anytime for storage equipment.
We can provide quotes upon request and respond within 24 hours.

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Zhejiang Toman Intelligent Technology Co., Ltd , https://www.tomanmachines.com