BS400S
CNC Automatic-Servo-Metal-Bandsaw
What Machining Challenges Does the Bigstone BS400S CNC All-Servo Bandsaw Solve?
The Big Stone BS400S is a high-precision CNC automatic horizontal metal bandsaw engineered and manufactured at our Hsinchu headquarters in Taiwan. Utilizing a Dual Servo Drive System (AC servo motors paired with precision ball screws for both saw frame downfeed and material indexing), the BS400S eliminates thermal drift and feeding fluctuations typical of traditional hydraulic systems, working in tandem with a 1.5 kW (2.0 HP) high-rigidity hydraulic clamping system. It delivers a cutting capacity of Ø400 mm / 400 × 400 mm (15.75" × 15. 75"), 0.1 mm (±0.004") repeatability, and an industry-leading 25 mm (0.98") ultra-short remnant length (saving 55 mm of expensive material per 6-meter raw bar). Certified under CE safety standards and ISO 14064-1 GHG inventory, the BS400S features a 360° fully enclosed safety cabin (operating noise < 75 dB(A) with zero mist/chip leakage), tailored specifically for continuous mass production of semiconductor parts, SUS304/316L stainless steel, tool steels, and aerospace titanium alloys.
Features
BS400S Technical Specifications & Cutting Performance
Official Standard Configuration (2026 Edition)Watch BS400S in Action: Dual Servo Ball Screw CNC Bandsaw Cutting Demonstration
Frequently Asked Questions by Metal Fabricators & Machine Tool Buyers (FAQ)
BS400S Automatic Batch Cutting: 3-Step Operational Workflow
Standard operating procedure for CNC touchscreen recipe setup, servo ball screw material indexing, and dual servo continuous slicing:
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Step 1 – Select Material Recipe & Input Cutting Length and Batch Quantity
On the 10-inch CNC touchscreen, select the target alloy grade (e.g., SUS304, tool steel, or titanium) and input target cut length and quantity. The system automatically configures optimal blade speed and servo downfeed rate.
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Step 2 – Load Raw Bar & Activate AC Servo Ball Screw Infeed Indexing
Place the raw bar on the infeed bed. The AC servo ball screw carriage advances the workpiece to the exact length (single stroke 600 mm / 23. 6"), the 1.5 kW hydraulic vise clamps securely, and the guide arm automatically positions.
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Step 3 – Execute AC Servo Ball Screw Downfeed & Automatic Slicing Cycle
Press cycle start. The AC servo downfeed drives the blade frame smoothly through the cut. Upon cut completion, the saw head elevates, discharges the piece, and the servo feeder advances the next cycle until the 25 mm remnant limit.
Why Precision Machine Shops Invest in BS400S: Core High ROI Benefits
⚡ Dual Servo Ball Screw System
Both downfeed and infeed indexing are powered by AC servo ball screws, eliminating hydraulic thermal drift and extending carbide blade life by 25%–40%.
💰 25 mm Ultra-Short Remnant (-68%)
Compared to industry average 80 mm remnant scrap, save 55 mm of material per raw bar. Delivers full machine ROI payback within 6 to 9 months.
🌐 Turnkey Automation & Offline CNC
10-inch touchscreen stores multi-step cutting programs and connects seamlessly with motorized roller tables for lights-out automated operation.
BS400S Search Keywords & Industrial Applications
Specification
Trade Information
- Country of Origin : Taiwan
- Main Export Markets : all over the world
- Payment Details :
- Payment Terms : T/T
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Minimum Order : 1 Units
Order Quantity Limit : 1 Units - Others : bandsaw machine
- Delivery Details :
- Lead Time : 60 Days
- FOB Port : TWKEE