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81X-RT Roller Chain

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Product Description

Production

Company Advantages

Service Support

Product Overview

The 81X-RT Roller Chain (also known as 81X Roof Top or Camelback Chain) is a high-performance engineered conveyor chain designed for demanding industrial environments.

Its distinctive Roof Top (Raised Top Plate) design is a strategic solution for industries handling bulk materials, such as lumber and panels. By minimizing direct contact between the materials and the chain body, it effectively prevents jamming and reduces operational instability. Built with a Solid Roller & Solid Bushing (SBR) structure, the 81X-RT delivers exceptional wear life in high-impact, dusty, and heavy-load conditions.

Key Features

• Roof Top / Camelback Design: Guides materials smoothly, reduces debris buildup, and prevents jamming during high-speed conveying.

• SBR Construction (Solid Bushing & Roller): Unlike curled components, our solid structure minimizes internal friction and significantly extends service life.

• Precision Heat-Treated Steel: Every link, pin, and roller is heat-treated (Case Hardened HRC 50-55) for maximum fatigue resistance.

• Enhanced Riveting: Precision-engineered riveting improves resistance to heavy shock and side-loading.

• Full Interchangeability: Fully compatible with standard 81X sprockets and existing conveyor systems.

Technical Specifications

Item	Value
Chain Type	Roof Top Roller Chain
Model	81X-RT
Pitch (P)	66.27 mm
Roller Diameter (d1)	23.0 mm
Inner Width (b1)	27.0 mm
Pin Diameter (d2)	11.1 mm
Plate Height (h2)	28.5 mm
Roof Top Width (M)	63.5 mm
Roof Top Height (RH)	25.4 mm
Tensile Strength	Approx. 133 kN
Weight	Approx. 5.5–6 kg/m

Typical Applications

• Lumber & Wood Processing: Log decks, edger infeed, and green chains.

• Panel & Paper Production: MDF, particleboard, and heavy pulp bale conveying.

• Agricultural Handling: Heavy-duty grain, feed, and seed transport.

• Bulk Material Systems: Moving abrasive or oversized materials in mining and recycling.

Workshops

We have 400 tons punching machines, 100 tons tensile machine, various welding robots and laser cutting equipment, mesh belt furnace, spectrometer, and over 300 sets advanced production and testing equipment.

Automation Group

Punching Group

Heat Treatment Workshop

Welding Workshop

Assembly Group

Laser Cutting Workshop

Quality Testing Center

Stocking Warehouse

Equipment

CNC Milling Machine

Cutting Machine

Heat Treatment with Automatic Mesh Belt Conveyor Furnace

Induction Hardened Machine

Welding Robot

Laser Cutting Equipment

Vacuum Furnace

Multipurpose Furnace

Quality Testing

Impact Testing Machine

Spectrograph

Vickers Hardness Tester

Metallographic Sample Cutting Machine

Pretension Machines

Electronic Rockwell Hardness Tester & Tensile Strength Testing Machine

Precision Length Measuring Instrument

Office

Why Choose JINQIU?

● Over 36 Years' History in Designing and Manufacturing Industrial Chains

With operations in more than 50 countries, we deliver high-quality industrial chains tailored to your needs.

We occupy more than 60,000 square meters, with 8 specialized production workshops, over 300 employees and including 50 in engineering and product developing. We have an annual production capacity of more than 10000 tons, and over 300 sets advanced production equipment and testing equipment.

● Innovative R&D Team Provides Customized Chain Solutions

We provide comprehensive technical support and our dedicated R&D team works closely with customers to design chains that meet unique requirements.

● Flexible Customization & Trial Orders to Meet Your Needs

At Jinqiu Chain, we support full customization and small-batch trial orders, ensuring solutions tailored to your specific applications.

Why Choose a Sharp Top Chain?

In automated packaging, assembly, and inspection lines, product stability is paramount. The broad surface of the Sharp Top Chain effectively prevents small, round, or unstable products from tipping or shifting during conveyance, thereby reducing production interruptions and improving overall efficiency.

SGS Certificate

Patent Certificate

After-sales Service

● Professional Technical Guidance

If you have any product questions about chain model selection, production quality, detailed data, troubleshooting, repair and maintenance, you can contact us at any time. We will arrange professional technicians to solve the problem and respond to your needs quickly.

● Free Sample Trial

If you have any doubts about our products, we can provide sample trial services to help you verify the product's suitability and performance before formal purchase.

● Order Tracking & Logistics Support

We provide order progress tracking service for each customer, ensuring that you know the production and delivery status of the product in real time. We provide flexible logistics options and can provide global delivery services according to your location.

● Product Installation Guide

Provide professional installation advice and technical support. You can contact the technical team by phone or online to ensure the smooth installation and commissioning of the chain on the equipment.

● Quality Assurance & After-sales Maintenance

We provide quality assurance for every chain product. If quality problems occur during use (such as chain breakage, wear, etc.), we provide repair or replacement services and ensure that you can resume normal operation in the shortest possible time.

● User Feedback & Improvements

We value every customer's feedback, regularly collect and analyze user opinions, and continuously improve our products and services. If customers have any new needs or suggestions, we will respond and adjust the plan in a timely manner.

Customer Testimonials

Buyers from Canada:

The product quality is very good and meets my expectations. Currently, I have not encountered any problems while using it, and the merchant is very professional.

Buyers from USA:

Chain quality is amazing and delivery is fast, I like it, look forward to our continued relationship.

Buyers from India:

Thanks, I think I have a trustworthy partner. You know our needs and try to keep our best interests in mind. Looking forward to our continued relationship.

Product Description

Production

Company Advantages

Service Support

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