TheEndringis a precision-engineered component used in rotary screen printing machines. It is designed to be bonded to both ends of a nickel rotary screen, providing structural support and a mechanical interface for the machine's driving system.
1. Key Functions
Structural Integrity:Maintains the perfect cylindrical shape of the thin nickel screen under tension.
Power Transmission:Couples the screen to the printing machine’s drive heads via notches or lugs to ensure synchronized rotation.
Registration Precision:Ensures accurate color-to-color alignment (fitting) during the multi-color printing process.
2. Technical Parameters
Item
Description
Compatible Brands
Stork, Zimmer, Reggiani, Buser, MBK, Laxmi, etc.
Standard Repeats (Circumference)
640mm (Standard), 819mm, 914mm, 1018mm
Material
High-grade Aluminum Alloy (most common), Zinc Alloy, or Copper
Manufacturing Process
High-pressure Die Casting & CNC Precision Machining
Surface Treatment
Polished finish or Anodized (for corrosion resistance and better glue adhesion)
3. Core Features
High Precision:Minimum tolerance in concentricity and roundness to prevent vibration or "jumping" during high-speed printing.
Chemical Resistance:Highly resistant to corrosion from textile dyes, chemicals, and cleaning solvents.
Superior Adhesion:The inner surface is specially treated to ensure a strong bond with epoxy resins or photosensitive adhesives used to attach the screen.
Durability:Designed for repeated use and easy removal/re-mounting when screens need to be replaced.
4. Installation & Usage
Preparation:Clean the inner rim of the end ring and the edges of the nickel screen thoroughly.
Bonding:Apply a specialized end-ring adhesive (epoxy) and insert the ring into the screen.
Curing:Place the assembled screen in a curing oven at the recommended temperature (usually 140°C–180°C) to solidify the bond.
Mounting:Align the notch on the end ring with the drive pin on the printing machine.
FQA:
Q1. Which rotary printing machine brands are these endrings compatible with?
A: Our endrings are precision-engineered to be fully compatible with major global brands, including Stork, Reggiani, Buser, and Laxmi. They are designed to match the original equipment manufacturer (OEM) specifications to ensure a perfect fit and stable rotation.
Q2. What repeat sizes do you offer for the endrings?
A: We provide a full range of standard repeat sizes, including 640mm (Standard), 819mm, 914mm, and 1018mm. If you have a specific or non-standard repeat requirement for specialized printing, please contact our technical team for custom solutions.
Q3. What material is used to ensure the durability of the endrings?
A: Our endrings are manufactured from high-strength aluminum alloy. This material provides the perfect balance of being lightweight yet extremely durable, offering excellent resistance to corrosion from printing chemicals and ensuring high dimensional stability during high-speed printing.
Q4. How do these endrings ensure high printing precision?
A: Precision is key. Our endrings undergo strict CNC machining to ensure perfect concentricity and a tight fit with the rotary nickel screen. This minimizes vibration and screen "run-out," which is essential for maintaining accurate pattern registration and preventing printing defects.
Q5. Are your endrings suitable for high-mesh or thin nickel screens?
A: Yes, the smooth finish and precise tolerances of our endrings help to evenly distribute mechanical stress across the screen edge. This prevents premature tearing or deformation, effectively extending the service life of your high-mesh or thin-wall nickel screens.
