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Fully-automatic clutch Diaphragm Spring (Disc Spring) Press Quenching Line

Roller Hearth Hot Stamping Production Line for Automotive High-Strength Steel

Roller-hearth Salt Bath Quenching Heat Treatment Production line

Rotary Hearth Furnace Heat Treatment Line

Smoke and Dust Purification System

Industrial Gas Deep Purification Equipment

Quenching Press

Roller Hearth Hot Stamping Production Line for Automotive High-Strength Steel

The roller hearth hot stamping production line for automotive high-strength steel is a widely applied and technically mature production line in the field of automotive body component manufacturing, especially for the hot stamping process of ultra-high-strength steel (UHSS).

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Roller Hearth Hot Stamping Production Line for Automotive High-Strength Steel

Roller Hearth Hot Stamping Production Line for Automotive High-Strength Steel

Product Overview

Centered on a roller hearth heating furnace, the production line adopts a continuous material conveying mode to integrally realize efficient sheet heating, rapid transfer, and precise stamping. It can stably produce high-strength, high-precision safety structural components for automotive bodies. In the new energy vehicle sector, it effectively addresses the bottleneck of excessive weight of large-capacity battery packs, meeting the dual development requirements of high strength and lightweight design for automobile bodies.

Application Scope

Automotive body components

Agricultural machinery structural parts

Core Advantages

Compared with walking-beam hot stamping production lines, the roller hearth hot stamping line features a more compact structure, lower maintenance costs, and easier operation and maintenance.

Product Structure and Features

Taking high-temperature-resistant roller bars as the conveying medium, the steel sheets are laid flat on the rollers and continuously transported in the furnace chamber as the rollers rotate, being uniformly heated to an austenitic state. The sheets are then rapidly transferred to the press die by an automated mechanism, where stamping and quenching are completed in one step, enabling efficient manufacturing of high-strength steel components.

The production line adopts YAJIE proprietary split-type roller bar connection structure with a quick-release design, allowing rapid roller replacement under high-temperature working conditions and greatly reducing maintenance difficulty. Meanwhile, it effectively reduces thermal short-circuiting with remarkable energy-saving effects.

The furnace body is divided into multiple independent temperature control zones, including a preheating zone, a heating zone, and a soaking zone. The conventional furnace length ranges from 10 to 50 meters and above. A multi-layer structure design is also available to further save customers’ production space.

Low heat loss, temperature uniformity ±5℃.	Electric heating or gas heating
Continuous production mode, suitable for mass production.	With protective atmosphere, the sheet can be discharged with slight oxidation or non-oxidation, resulting in high surface quality of parts.
Friendly human-machine interface with visualized operation.Mobile APP can be configured to realize mobile monitoring and office.	Remote maintenance function enables online remote diagnosis and troubleshooting of equipment, ensuring stable production for users.

Product Specifications and Models

Model RRF – Electric Heating; BRF – Gas Heating	Effective Size (mm) Width×Length	Furnace Opening Height (mm)	Effective Number of Working Stations	Process Cycle (S)	Maximum Load Per Set (Kg)	Heating Power (kW)
RRF/BRF10-270×3400×3-SP	W2700×L34000	100	Determined based on workpiece dimensions and cycle time.	≥ 5	≥ 30	1700
RRF/BRF10-250×3900×3-SP	W2500×L39000	100		≥ 15	≥30	1560
RRF/BRF10-140×1200×15-SP	W1400×L12000	150		≥ 120	≥40	430
Note: The automotive high-strength steel hot stamping production line can be flexibly designed according to the customer’s sheet quantity per press die, production cycle time and production capacity.

Pre

Fully-automatic clutch Diaphragm Spring (Disc Spring) Press Quenching Line

Roller-hearth Salt Bath Quenching Heat Treatment Production line

Pre

Roller-hearth Salt Bath Quenching Heat Treatment Production line

More products

Pusher Furnace Heat Treatment Line

Pusher furnace is used in the heat treatment of gear, bearing, crankshaft and other auto parts, such as carburizing, carbonitriding, tufftriding, or protective atmosphere heating and quenching.

Roll-bottom annealing furnace

The roller-bottom-type protective atmosphere annealing production line is primarily used for the protective-atmosphere spheroidizing annealing of high-volume parts in the bearing industry, such as bearing rings, rollers, wire rods, and tubes—achieving spheroidization results that meet customer requirements.

Pit Furnace Heat Treatment Line

The controlled atmosphere pit carburizing furnace line is generally composed of pit carburizing furnace, pit tempering furnace，quenching oil (salt) tank, cleaning machine, etc.

Box Furnace Heat Treatment Line

Box furnace production line is the most widely used mature furnace type in heat treatment industry. The system is applicable for either mass or batch processing of various kinds of work pieces. It has a large scope of applicability and is particularly suitable for carburization, carbonitriding. recarburization, as well as oxygen-free heat hardening, normalization and annealing of complex parts under protective atmosphere.

Nitriding Furnace Production Line

Widely applicable for nitriding treatments of various products, including hydraulic components, wind turbine gear rings, engine crankshafts, mold surface enhancement, clutch friction plates subjected to nitriding, and corrosion-resistant nitrided parts. It can achieve nitriding and soft nitriding processes tailored for a range of applications, such as hard nitriding, soft nitriding, and post-oxidation treatments.

Fully-automatic clutch Diaphragm Spring (Disc Spring) Press Quenching Line

The treatment line is high in automation level and consistency of quality of product. The complete quenching line is formed up by automatic loader, roller hearth heating furnace, fully automatic press quenching machine, oil blowing device, washing machine, parts stacking machine, tempering furnace, forced hot press, unloading device and control system.

Roller Hearth Hot Stamping Production Line for Automotive High-Strength Steel

Roller-hearth Salt Bath Quenching Heat Treatment Production line

The salt quenching roller hearth furnace developed by Yajie is a new generation salt quenching equipment, adopts Yajie many new patents, widely used for bearing industries, automobile parts industries processed by atmosphere salt quenching Martensite and Bainite quenching.

Rotary Hearth Furnace Heat Treatment Line

Rotary Hearth Furnace is a high-capacity system suitable for treating per cycle a large batch of work pieces. It features the use of a single access door for loading and unloading of work pieces, the work pieces rotate with the base,and the work pieces can be loaded in furnace in an either single or multi-layer mode.

Smoke and Dust Purification System

Smoke and dust purification system is suitable for purification of various kinds of industrial gases, especially oily soot or various harmful gasses. The equipment is widely used in heat treatment industry and other industries where oil soot is liable to be produced. The equipment operates with a multiple of separation technologies to ensure the gas emission is up to the specified standard.

Industrial Gas Deep Purification Equipment

In the controlled atmosphere heat treatment sector, natural gas (propane) has found ever-increasingly extensive application. With the demand on quality of heat treatment process becoming ever-increasingly stricter, the effect on quality of processed product produced by the sulphur adverse content in natural gas (propane) has become a public concern. The natural gas (propane) desulphurization equipment developed by Yajie provides a stable supply of natural gas with very low sulfur content.

Quenching Press

The automated limited-type quenching production line is ideal for the micro-variant production of large-volume bearing rings and gear sleeves, significantly reducing initial machining allowances, enhancing production efficiency, and lowering manufacturing costs. It is a heat treatment process for ring-shaped components with great potential for future development.

Provide heat treatment equipment solutions for your industry

Yajie Technology (Tangshan) Co., Ltd.

Web：http://www.tsyjjx.com

Tel：+86-315-7657768

E-mail：sales@tsyjjx.com

Add: Hancheng Industrial Park, Lubei District,

Tangshang, Hebei Province,P. R. China

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