DMS Servo series
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Semi-Auto Double miter servo cutting metal band saw
The Big Stone DMS Servo Series Semi-Automatic Double Miter Band Saw is engineered with an advanced AC servo motor and precision ball screw downfeed system, coupled with 0.1° high-resolution digital angle encoding and a heavy-duty double-column linear guideway frame. Supporting 90° straight cutting and bidirectional mitering from 90° to 30° left and right (up to 550 × 800 mm / 21.7" × 31.5" rectangular and Ø600 mm / Ø23.6" round capacity), it completely eliminates hydraulic thermal drift, making it the benchmark sawing solution for heavy structural steel fabrication, aerospace titanium alloys, and high-precision metal profiles.
How Does the DMS Servo Series Deliver 0.1° Digital Precision and Thermal-Drift-Free Sawing?
【Cutting Envelope】 Width: 650–800 mm (25.6"–31.5"), Height: 440–550 mm (17.3"–21.7") | Blade Speed: 20–90 m/min
(66–295 FPM) variable inverter drive.
【Engineering Innovation】 As a technological leap in heavy metal angle sawing, the DMS Servo Series replaces
conventional hydraulic downfeed cylinders with a direct-drive ball screw servo actuator. This eliminates downfeed feed-
rate fluctuations caused by hydraulic oil viscosity decay during multi-shift continuous operations. Coupled with an optical 0.1° high-resolution digital encoder, operators position the saw head precisely from 90° to 30° left and right. The patented 5° blade inclination
reduces initial contact impact on wide-flange beams and hollow sections, boosting cutting throughput by over 40% while
extending band saw blade life by 25%–40%.
Features
🛠 Why Does the DMS Digital Servo Feed System Outperform Conventional Hydraulic Saws?
1High-Precision Ball Screw Servo Drive
Replacing hydraulic downfeed cylinders with an AC servo motor coupled to a precision ball screw, the rigid micron-level feed control eliminates downfeed velocity decay caused by hydraulic oil heating, ensuring absolute cutting squareness across continuous multi-shift production.
2Dynamic Constant Chip Load Monitoring
Real-time servo current feedback monitors cutting resistance during section transitions (such as entering H-beam webs or structural hollow corners). The system dynamically adjusts downfeed thrust in milliseconds, preventing blade tooth stripping and extending service life by up to 40%.
30.1° High-Resolution Digital Miter Positioning
Equipped with high-resolution digital optical encoders, the operator console displays real-time angle readouts, eliminating visual vernier scale parallax errors and maintaining bidirectional 90° to 30° miter positioning accuracy within ±0.05°.
DMS Servo Series Key Structural Features & Equipment Packages
- Servo Ball Screw Downfeed: AC servo motor drives a precision ground ball screw for ultra-smooth downfeed with zero thermal decay.
- 0.1° Digital Bidirectional Mitering: Seamless miter adjustment from 90° to 30° Left and 90° to 30° Right with real-time digital position display.
- 5° Blade Inclination Cant: Substantially reduces initial tooth contact area when slicing wide-flange beams and hollow tubing, boosting cut speed by 40%.
- Double-Column Linear Guideway Frame: Symmetrical twin-column structure dampens lateral harmonics on large structural steel.
- Automatic Rapid Bow Elevation: The saw bow ascends automatically to preset clearance upon cut completion for rapid cycle changeover.
- Standard Equipment: Inverter variable blade speed (20–90 m/min / 66–295 FPM), hydraulic blade tensioning, laser line projector, vise pressure regulator, high-volume flood cooling.
- Optional Accessories: Spray Mist Lubrication (MQL), hydraulic top bundle clamping, full-stroke vise jaws, modular 1m/2m/3m/5m infeed/outfeed auxiliary idle roller tables.
DMS Servo Series Technical Specifications Matrix (Dual Units)
| Specification Parameter | CF-650DMS Servo | CF-705DMS Servo | CF-800DMS Servo (Gantry Flagship) | |
|---|---|---|---|---|
| Cutting Capacity (Rect / Round) |
● 90° Round Stock | Ø450 mm (Ø17.7") | Ø450 mm (Ø17.7") | Ø600 mm (Ø23.6") |
| ■ 90° Rectangular | 440 × 650 mm (17.3" × 25.6") | 440 × 700 mm (17.3" × 27.6") | 550 × 800 mm (21.7" × 31.5") | |
| 45° Left & Right | 440 × 420 mm (17.3" × 16.5") | 440 × 450 mm (17.3" × 17.7") | 400 × 520 mm (15.7" × 20.5") | |
| 30° Left | 340 × 270 mm (13.4" × 10.6") | 440 × 270 mm (17.3" × 10.6") | 400 × 340 mm (15.7" × 13.4") | |
| 30° Right | 440 × 270 mm (17.3" × 10.6") | 440 × 290 mm (17.3" × 11.4") | -- | |
| Motor Power (kW / HP) |
Main Blade Motor | 3.75 kW (5.0 HP) | 3.75 kW (5.0 HP) | 5.5 kW (7.5 HP) |
| Hydraulic System Motor | 0.75 kW (1.0 HP) | 0.75 kW (1.0 HP) | 1.5 kW (2.0 HP) | |
| Coolant Pump | 0.1 kW (0.13 HP) | 0.1 kW (0.13 HP) | 0.2 kW (0.27 HP) | |
| Blade Dimensions | 5400 × 41 × 1.3 mm (212.6" × 1.61" × 0.051") | 5660 × 41 × 1.3 mm (222.8" × 1.61" × 0.051") | 5660 × 41 × 1.3 mm (222.8" × 1.61" × 0.051") | |
| Blade Speed Range | 20–90 m/min (66–295 FPM) | 20–90 m/min (66–295 FPM) | 20–90 m/min (66–295 FPM) | |
| Bed Table Working Height | 730 mm (28.7") | 730 mm (28.7") | 800 mm (31.5") | |
| Machine Dimensions (L×W×H) | 1550 × 2900 × 2250 mm (61.0" × 114.2" × 88.6") | 1600 × 3000 × 2300 mm (63.0" × 118.1" × 90.6") | 2000 × 3500 × 2650 mm (78.7" × 137.8" × 104.3") | |
| Machine Net Weight (approx.) | 2,200 kg (4,850 lbs) | 2,500 kg (5,512 lbs) | 5,200 kg (11,464 lbs) | |
| Roller Table Configuration | Standard DMS machines include NO infeed and NO outfeed roller tables. Infeed/outfeed miter auxiliary tables are optional accessories (modular 1m, 2m, 3m, 5m non-motorized passive idle roller design). | |||
Key Industrial Applications for DMS Servo Band Saws
Frequently Asked Questions: Technical & Procurement Insights (FAQ)
1. What is the maximum cutting capacity of the DMS Servo series?
The flagship model CF-800DMS Servo handles up to 550 × 800 mm (21.7" × 31.5") rectangular and Ø600 mm (Ø23.6") solid round stock at 90°. The CF-650DMS Servo and CF-705DMS Servo models support 440 × 650 mm (17.3" × 25.6") and 440 × 700 mm (17.3" × 27.6") respectively.
2. What is the bidirectional mitering range and positioning accuracy?
The series supports 90° to 30° Left and 90° to 30° Right bidirectional mitering. Equipped with high- resolution digital optical encoders, miter positioning achieves 0.1° resolution with repeatability within ±0.05°.
3. How does ball screw servo downfeed differ from conventional hydraulic downfeed?
Hydraulic systems suffer from thermal drift as oil temperatures rise across long shifts, causing feed rate variations and out-of-square cuts. The DMS Servo series uses an AC servo motor coupled to a precision ball screw, delivering rigid, constant feed with zero thermal decay and preventing tooth stripping.
4. Are infeed and outfeed roller tables included with the standard machine?
No. Standard DMS semi-automatic machines have NO infeed and NO outfeed roller tables included by default. Optional heavy-duty miter auxiliary roller tables are available in modular 1m, 2m, 3m, and 5m (3.3, 6.6, 9.8, 16.4 ft) lengths (strictly non-motorized passive idle roller design).
5. What are the delivery lead times and factory technical support services?
Standard machine delivery lead times range from 45 to 60 days. Big Stone provides factory-certified commissioning, operator training, 1-year comprehensive warranty, and rapid factory technical consultation (+886-3-5931688 / info@bigstone.com.tw).
How to Complete Miter Sawing Setup on the DMS Servo Series in 3 Steps
Step 1: Set Digital Angle & Cutting Parameters
Input the required angle (90° to 30° Left/Right) on the touch panel; the saw bow swivels and locks at 0.1° precision via the digital optical encoder.
Step 2: Clamp Workpiece & Initiate Servo Downfeed
Confirm full-stroke hydraulic vise clamping and press start; the AC servo motor drives the ball screw for constant chip-load downfeed.
Step 3: Auto Cut Completion & Bow Elevation
Upon cut completion, the limit sensor signals the saw bow to automatically elevate to preset clearance height, ready for the next cutting cycle.
Specification
DMS Servo Semi-Auto Double Miter Band Saw Live Demonstration
Industrial Field Performance & Customer Feedback
"We utilize the DMS-650 for cutting large stainless steel angles and square hollow sections. Both 45° miter joints match perfectly without secondary grinding. The servo ball screw feed keeps angle tolerance within 0.05°, passing inspection on the first try!"
"Processing hundreds of large H-beams and channels daily, the DMS servo feed system is exceptionally rugged. Straight 90° and sharp 30° cuts are crisp. Blade life increased nearly 40% compared to old hydraulic saws, boosting overall shop capacity significantly."
Trade Information
- Country of Origin : Taiwan
- Main Export Markets : all over the world
- Payment Details :
- Payment Terms : T/T
-
Minimum Order : 1 Units
Order Quantity Limit : 1 Units - Others : bandsaw machine
- Delivery Details :
- Lead Time : 60 Days
- FOB Port : TWKEE
