Electric Servo Press for Micro-Precision Metal Stamping & Forming

Our high-precision electric servo press systems are engineered for demanding precision metal stamping, forming, micro-embossing, and assembly applications. Designed for processes requiring programmable stroke profiles, adjustable low pressing speeds, and closed-loop force-displacement feedback, our servo-driven technology eliminates the limitations of conventional fixed-stroke mechanical presses.

By enabling micro-meter position control and real-time process monitoring throughout the forming cycle, XIRO electric servo presses deliver unmatched process repeatability across complex part geometries and sensitive materials.

 

Precision Metalworking & Forming Applications

Conventional mechanical presses rely on fixed flywheel kinematics, making them ill-suited for delicate, micro-dimensional forming where impact shock can fracture materials or cause bottom-dead-center (BDC) positional drift.

Our application-driven electric servo press systems provide a customizable alternative for high-value metalworking operations, including:

• Micro-Precision Embossing & Coining: Achieving sub-millimeter feature depths with  displacement repeatability.

• Precision Shallow Drawing & Leveling: Eliminating internal stress and springback in thin-gauge metal strips using  worktable parallelism.

• Micro-Staking & Precision Riveting: Maintaining strict force limits with  force resolution to prevent component distortion.

• Compliant Pin & Connector Press-Fitting: Ensuring 100% in-process force-displacement validation for electronics and automotive ECUs.

 

Case Study: Micro-Precision Forming for Endoscopic Surgical Stapler Components

Process Overview & Material Specifications

Precision components used in endoscopic surgical staplers—such as stapler anvils and anvil covers—require micro-scale forming of functional guide pockets. These pockets are critical for cleanly folding titanium surgical staples into an exact "B-form" during tissue closure.

• Material: Thin-gauge stainless steel (304, or 316L).

• Material Thickness: .

• Feature Profile: Multiple miniature staple pockets per component.

• Forming Depth: Approximately  (forming depth accounts for nearly 20%–40% of the total strip thickness).

 

[ Hybrid Manufacturing Workflow ]

Blanking / Piercing (High-Speed Press) --> Bending (Progressive)  --> Micro-Pocket Embossing & Leveling (XIRO Electric Servo Press) --> Electropolishing / Heat Treatment (Post-Processing)

In this hybrid manufacturing process, conventional stamping presses perform high-volume blanking and preliminary forming, while the XIRO electric servo press is deployed for the critical micro-embossing and precision leveling stage.

 

Precision Challenges in Micro-Stamping

The micro staple-pocket forming process presents several challenges that differ significantly from conventional sheet-metal stamping:

1. Micro-Meter Depth Control: Material thickness is only a few tenths of a millimeter, while required forming depths are extremely shallow. Deviations in ram position, material thickness, or forming force directly impact feature consistency.

2. Multiple Miniature Features: Maintaining consistent position and tool alignment across multiple pockets on a single component is critical.

3. Material Shearing & Tearing: Rapid impact speeds from conventional mechanical flywheels can easily crack thin-gauge stainless steel during shallow drawing.

The objective is not merely achieving high encoder resolution, but establishing a stable, repeatable forming process where displacement, speed, force, and material behavior are controlled together.

 

XIRO Electric Servo Press Solution

XIRO electric servo press is integrated into the micro-embossing and precision leveling stage to provide controlled ram movement.

1. Adjustable Pressing Speed (Soft-Touch Profile)

Micro-embossing does not require the violent impact speeds of conventional stamping. The XIRO servo press allows pressing speeds to be freely adjusted from  to . Decelerating prior to material contact helps eliminate impact shock and micro-cracking in thin stainless steel.

2. Three Selectable Control Modes

To match specific forming requirements, the system offers three programmable operating modes:

• Position Mode: Utilizes  displacement resolution and  accuracy to establish a defined pressing depth.

• Pressure Mode: Employs  force resolution and  force accuracy for sensitive load control.

• Position- Pressure Mode (Zone Judgment): Combines displacement and force parameters into a real-time process window (), instantly detecting abnormal stock thickness or tool wear.

3. Recipe Storage & Data Connectivity

Program Capacity: Stores more than 100 program sets with 50 recipe positions for rapid batch recall.

Quality Traceability: Real-time process data can be saved via USB, with Ethernet data transmission available for automated quality network integration.

 

Performance & Benchmark Comparison

By replacing conventional pneumatic or mechanical impact presses with the XIRO Electric Servo Press, the surgical stapler anvil manufacturing process achieves verified high-precision performance within guaranteed machine specifications:

Performance Metric	Conventional Pneumatic/Mechanical Press	XIRO Electric Servo Press System	Process Advantage
BDC Repeat Precision	±0.025-0.05mm	±0.01mm	2.5x–5x Positional Accuracy Improvement
Pocket Depth Pass Rate	~91.2%	≥99.5%	Significant Yield Optimization
Micro-Cracking Rate	~3.5%	0.00%	Eliminated via Low-Speed Soft-Touch
In-Process Inspection	Offline Manual Sample Inspection	100% Real-Time Curve Validation	Zero Defect Escapes (Zone Judgment)
Quality Traceability	Manual Log / Non-traceable	Automated USB / Ethernet Data Export	Supports ISO 13485 Traceability Compliance

Application Result

Under validated tooling and process conditions, the XIRO Electric Servo Press provides a far more stable and controllable method for forming miniature staple-pocket features than conventional fixed-stroke pressing equipment.

For a representative application involving a 0.25 mm-thick 304 stainless-steel component with multiple miniature staple pockets, target forming depths can be strictly maintained within engineering tolerances using the system's  displacement repeatability and  encoder resolution.

The key value of the XIRO electric servo press in this application is not simply its high displacement resolution. It is the combination of programmable motion, controlled pressing speed (), position-force monitoring, repeatable recipe recall, and production data management in a single precision forming system.