High Temperature Silicone MDO Nip Rollers for BOPP and Biaxial BOPET Film Stretching Equipment

1 Preface

The MDO longitudinal stretching section is the core processing segment that determines the flatness, thickness uniformity and overall quality of biaxial oriented plastic films. As the key pressure-bearing component inside this working area, MDO nip rolls directly affect the consistency of film stretching under high-temperature operating conditions. This paper focuses on high-precision silicone-coated MDO nip rolls that match mainstream international film stretching equipment brands, and systematically sorts out product advantages, two dedicated product series and flexible structural schemes for reference by film production engineers and procurement personnel.

2 Core Performance Advantages of Silicone MDO Nip rolls

All MDO nip roll products adopt imported high-temperature resistant silicone rubber as the surface cladding material, with multiple irreplaceable industrial comprehensive performance indicators. The products are manufactured according to ultra-precision machining standards, featuring stable high-temperature resistance, excellent elastic recovery ability, and no permanent deformation after long-term continuous compression work. This series of rolls can be perfectly matched with complete production lines manufactured by well-known brands including Bruckner, Mitsubishi, DMT and Dornier, and have provided stable and continuous processing performance for a large number of film manufacturing enterprises all over the world.

3 Two Specialized MDO Nip roll Product Series

Two targeted product lines are developed respectively for BOPP and BOPET film production lines, with independent dimension specifications and complete technical indicators to adapt to different stretching technological standards.

3.1 MDO Nip roll for BOPP Film Production Lines

Available standard dimensions: 130×1220mm / 130×1420mm / 130×1500mm, 150×1000mm / 150×1300mm, 110×890mm, and special DMT matching model 150×1200mm / 150×1400mm Complete technical indicators:

1. Surface cladding material: high-performance silicone rubber
2. Rubber hardness: 70–75 Shore A
3. Overall runout tolerance: ≤0.05 mm
4. rollbarrel and spindle raw material: 45# carbon steel
5. Standard supporting bearing model: SKF 22210 E C3
6. Dynamic balance grade: G2.5, applicable to the maximum operating speed of the production line
7. Continuous heat resistance upper limit: 260°C
8. Surface crown optional: 0.3mm crown or flat structure
9. Standard quality warranty period: 3 months

3.2 MDO Nip roll for BOPET Film Production Lines

Conventional size specifications: Φ200×3500mm, 170×2800mm, 190×2780mm, 200×2900mm Complete technical indicators:

1. Main rollbody material: 45# carbon steel
2. Crown depth standard: 0.5–0.6 mm
3. Contact surface material: high temperature resistant silicone rubber
4. Runout control standard: less than 0.05 mm
5. Dynamic balance grade: G2.5, matching full line speed operation
6. Maximum sustainable working temperature: 260°C
7. Standard quality warranty period: 6 months

4 Diversified Spindle Structure Optional Scheme

Two different spindle structural forms are provided for customers to select independently according to equipment installation size, positioning requirements and logistics transportation conditions. All spindle components are equipped with precision threaded positioning holes and calibrated measuring surfaces after finishing processing, which can ensure accurate assembly and long-term stable operation on the film stretching production line.

5 Customized Matching Service for Film Production Lines

No matter the production line produces BOPP or BOPET biaxial films, customers can submit the required roll dimensions and complete equipment parameter information to professional technical engineers. We will formulate cost-effective customized schemes that meet European manufacturing quality standards, effectively reduce the overall procurement cost for customers, cut unplanned maintenance downtime, and save labor and time costs in the workshop.

Contact Information

Jenny Liu Mobile / WhatsApp: +86 17743789775 Email: sale05@huataogroup.com Official Product Page: https://www.huataorolls.com/mdo-nip-roll.html