Used SEYI SN2-110 Press: High-Precision 110-Ton Double Crank Press Technical Guide

Author:JINYI           Date:2026-02-11

Used SEYI SN2-110 Press

Parameter Specification
Stock Number 810997
Brand SEYI
Model SN2-110
Origin Taiwan
Capacity (Tonnage) 110 Ton
Stroke Length 180 mm
Stroke Speed 35-65 spm
Die Height (Shut Height) 400 mm
Slide Adjustment 90 mm
Slide Area 1430 * 520 mm
Bolster Area 1880 * 680 mm

1. Equipment Overview: The Legacy of SEYI SN2 Series

The SEYI SN2-110 is a cornerstone of precision in the metal forming world. Manufactured by SEYI in Taiwan, the SEYI SN2 series represents the peak of straight-side, double-crank mechanical press technology. This specific model is engineered for high-rigidity and low-deflection performance, making it an essential asset for modern manufacturing floors. The "Straight Side" design ensures that the frame remains vertically stable even under heavy load, eliminating the 'angular deflection' often seen in C-frame presses. For a used machine under stock number 810997, it offers an incredible opportunity to acquire tier-one industrial technology at a fraction of the cost of a new unit. The SEYI SN2-110 is widely recognized for its vibration-dampening capabilities and its ability to maintain die alignment over millions of cycles, which is why it remains a highly sought-after model in the global used machinery market.

2. Technical Specifications Analysis: Engineering for Productivity

Diving into the technical specifications of the SEYI SN2-110 reveals why it is such a versatile workhorse. With a 110-ton capacity, this machine sits at the 'sweet spot' for medium-duty metal stamping. One of its standout features is the stroke length of 180mm. This relatively long stroke allows for greater flexibility in forming parts with deeper draws or using taller die sets. The variable speed range of 35 to 65 strokes per minute (spm) allows production managers to optimize the cycle rate based on material flow characteristics and tooling requirements. A slower spm is ideal for complex forming where material needs time to flow, while the upper limit of 65 spm provides high throughput for simple blanking operations.

Working Envelope and Precision Adjustments

The workspace provided by the SEYI SN2-110 is exceptional for its class. The bolster area measures a significant 1880 * 680 mm, providing ample room for progressive dies that require long feed lengths. Furthermore, the slide area of 1430 * 520 mm ensures that the downward force is distributed across a wide surface, minimizing tool wear. With a shut height of 400mm and a slide adjustment of 90mm, operators can quickly swap between different tool heights, reducing downtime during setup. The motorized slide adjustment is typically a standard feature on these models, allowing for micron-level precision in setting the die penetration depth, which is critical for maintaining part quality in high-tolerance applications.

3. Application Scenarios: From Automotive to Appliance Manufacturing

The SEYI SN2-110 is specifically designed to handle eccentric loads, a common challenge in progressive die stamping. In the automotive sector, this machine is frequently used for stamping internal reinforcement brackets, seating components, and small-to-medium body panels. Because the force is applied through two points (the double crank), the slide remains parallel to the bolster even if the stamping force is not perfectly centered. This makes it ideal for producing complex electronic enclosures, computer chassis components, and domestic appliance parts where aesthetic finish and structural integrity are paramount. Its large bed size also accommodates auxiliary equipment like transfer units or scrap conveyors, making it a perfect candidate for a fully automated production cell.

4. Investment Value: The ROI of a Used SEYI Press

Investing in a used SEYI SN2-110 offers a compelling financial case for manufacturers looking to expand their capacity without the heavy capital expenditure of a brand-new machine. Taiwan-made presses like SEYI offer a superior balance between the ultra-premium Japanese brands and the entry-level machines found elsewhere. They provide 95% of the precision at a significantly lower price point. When purchasing used, the initial depreciation has already occurred, meaning the machine retains its value well should you choose to upgrade in the future. Additionally, SEYI’s global presence means that spare parts, technical documentation, and service technicians are readily available, ensuring that your machine stays operational and minimizes costly downtime.

5. Frequently Asked Questions (FAQ)

Q1: Can the SEYI SN2-110 handle progressive die operations?

Yes, the double-crank design is specifically built for progressive dies. It resists tipping moments better than single-point presses, ensuring uniform pressure across the entire die length.

Q2: What is the main advantage of the 'Straight Side' frame?

The straight-side frame provides superior rigidity and significantly less deflection than C-frame presses, which extends tool life and improves part accuracy.

Q3: Is the stroke speed adjustable?

Yes, it features a variable speed drive allowing for a range of 35 to 65 strokes per minute, which can be tuned to match your production needs.

Q4: What safety features are typical on this model?

The SEYI SN2-110 usually comes equipped with Hydraulic Overload Protection (HOLP), dual-hand safety buttons, and light curtains to protect the operator and the machinery.

Q5: How easy is it to find spare parts for a Taiwan-made SEYI?

Very easy. SEYI is one of the world's largest press manufacturers with a vast distribution network, ensuring that parts like seals, switches, and gears are always available.

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