Tandem Press Line - Cost-Effective Automation for Mid-Volume Stamping

Hello everyone, I'm Vania.

Today we are going to talk about the Tandem Press Line.

What is the function of this production line? And why do we adopt this design?

Tandem Press Line

Simply put, several independent presses are arranged in a row, with 6-axis robots or gantry manipulators handling workpieces between them.

Each press performs one single process, and manipulators transfer parts between working stations.

This design is adopted for practical production demands. Many factories receive medium-batch orders, manufacturing automotive brackets one day and home appliance shells the next. Multi-station lines are overly cumbersome for such cases, while manual production lines bring heavy workloads. The tandem line strikes a perfect balance. It features modular and detachable structure. The breakdown of one single press will not halt the whole line, and product changeover can be completed without major adjustments.

(Large presses tandem stamping special moving manipulator)

Three core highlights valued most by customers

• Cost-effective solution: Phased procurement cuts upfront investment pressure. Low operation and maintenance cost for single unit, and equipment failure won’t suspend the whole production line.
• Fast die change & strong versatility: Modular die replacement ensures high efficiency. Parameters can be adjusted independently with no extra investment on special equipment.
• Adjustable production capacity: Equipment quantity can be increased or decreased flexibly to cope with fluctuating orders and prevent idle resources.

Production efficiency and compatibility with medium-batch production

• High overall utilization rate: Presses can be purchased in batches. We can start production with two units first and add more equipment later. Only the faulty single machine needs maintenance instead of the whole line, which also keeps maintenance costs down.
• Balanced efficiency and product quality: Die change is realized by module replacement. Each press supports independent parameter adjustment, with no need for dedicated conveying fixtures.
• Flexible adaptation to order changes: Extra presses can be added for bulk orders and reduced for small-volume demands, effectively avoiding equipment idleness.

Key Differences Compared with Multi-station Stamping Lines

Simply put, multi-station lines are the preferred option for large-batch production. Tandem lines are ideal for medium-batch manufacturing with diversified product demands.

（Compound Flexible Intelligent Stamping Automation System）

Ideal Applicable Manufacturers

• Auto parts factories: Produce diversified small and medium body parts and chassis parts, with output of tens of thousands of pieces per product type.
• Home appliance hardware factories: Manufacture air conditioner brackets, washing machine inner drums and other products with frequent specification changes, avoiding repeated equipment procurement for different specifications.
• General mechanical parts factories: Handle multi-process and small-batch orders, capable of delivering products as required by clients.

Summary: The optimal automated solution for medium-batch stamping(so far)

This tandem stamping line developed by RUIHUI is tailored to address the pain points of medium-batch production. It delivers transparent cost control and easy product switching, avoiding the dilemma of being affordable to buy yet expensive to maintain that exists with multi-station lines.

Here is a real case. A home appliance manufacturer in East China retrofitted three old presses into a tandem line. Its die change time was cut from 90 minutes to 18 minutes, pushing up the profit margin of medium-batch orders by nearly 13%.

Would you like to calculate the profit gains after upgrading your current production line to the tandem mode?

Feel free to contact RUIHUI right away. Our professional engineers will conduct a customized assessment for you.

RUIHUI — Makes metal forming simpler.