Automatic Single Miter Cutting Band Saws
Why Choose Big Stone Automatic Single Miter Band Saws (AM & HBM Series) for Precision High-Speed Production?
The Big Stone Automatic Single Miter Metal Band Saw Series (AM & HBM Series) is engineered and manufactured at Big Stone's primary facility in Hsinchu, Taiwan (Plant area: 4,650 m² / ~50,052 sq ft / 1,406 坪). Purpose-built for structural steel sections, mechanical tubing, heavy pipe, and alloy profiles, the lineup spans from the economic CF-350AM (270 × 350 mm / 10.6" × 13. 8", roller-driven infeed with ±0.2 mm tolerance) to the heavy-duty CF-530HBM (320 × 530 mm / 12.6" × 20.9", solid round Ø330 mm / Ø13.0", dual-vice hydraulic hitch feed with 0.1 mm precision). Built upon rigid pivot-type swivel saw heads, the series supports precision mitering from 90° straight down to 45° or 60° (30° acute angle). Featuring intuitive PLC touchscreen control (optional NC multi-group programming), variable inverter blade drive (20–95 m/min / 66–312 FPM), and motion sensor blade-break protection, the series enables seamless unattended batch slicing. All models are CE European Safety Certified and verified under ISO 14064-1:2018 greenhouse gas inventory standards.
Big Stone AM & HBM Series Core Engineering Advantages
🔄 90° to 45°/60° Precision Single Mitering
Heavy-duty pivot swivel head with precision graduated scale and quick-action locking mechanism enables rapid setup for 90° cuts down to 45° or 60° acute angles, matching truss and framework joint fabrication.
⏩ Automated Infeed Mechanisms
CF-350AM features an integrated powered roller infeed table; CF-530HBM utilizes a heavy-duty hydraulic dual-vice hitch feed system (500 mm / 19.7" single stroke, multi-indexing up to 4500 mm / 177") for slip-free clamping.
🖥️ Smart PLC Interface & Inverter Speed
Touchscreen PLC panel includes auto piece counting and diagnostics, with optional NC multi-group batch control; paired with 20–95 m/min stepless variable blade speed to optimize cutting in structural, carbon, and stainless steels.
Standard 4-Step Automatic Miter Sawing Workflow (SOP)
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Step 1: Program Cutting Parameters on PLC Touchscreen
Input target cut length, batch piece quantity, and downfeed rate on the operator touchscreen. (Optional NC Control: multi-group cutting length and quantity batch input).
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Step 2: Swivel Pivot Head to Miter Angle & Lock Rigidly
Release the angle locking handle, rotate the pivot-type saw frame to the target miter angle (90° straight down to 45° or 60°), align with the precision index pointer, and secure firmly.
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Step 3: Load Workpiece & Engage Automatic Clamping
Position the structural steel or tube onto the infeed table; activate the hydraulic shuttle vise (or powered roller) to clamp the material automatically.
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Step 4: Execute Fully Automatic Continuous Slicing Cycle
Press Cycle Start; the machine executes automatic index feeding → hydraulic clamping → regulated downfeed cutting → auto saw bow rise upon cut completion → continuous repeat slicing.
AM & HBM Specifications Matrix (Dual Units SSOT Standard)
Official Big Stone Catalog Data (Metric & Imperial Units)
Cutting capacities from 270 × 350 mm to 320 × 530 mm, equipped with variable inverter blade speed, integrated infeed bed, and motion sensor
blade-break protection.
※ Roller Table Configuration: Standard machines include an integrated infeed bed. Modular non-
motorized passive idle roller conveyor tables (1m, 2m, 3m, 5m) for long material handling are optional accessories.
| Model Designation & Infeed Type | 90° Cutting Capacity (H × W / Round) | 45° Single Miter Capacity | 60° Acute Miter Capacity | Motor Power / Blade Size / Net Weight |
|---|---|---|---|---|
|
CF-350AM Economic Automatic Power Roller-Driven Feed (±0.2 mm) |
270 × 350 mm (10.6" × 13.8") Ø280 mm (Ø11.0") |
220 × 220 mm (8.7" × 8.7") Ø220 mm (Ø8.7") |
-- |
1.5 kW (2.0 HP) 3560 × 27 × 0.9 mm (140.2" × 1.06" × 0.035") 850 kg (1,874 lbs) |
|
CF-530HBM Heavy-Duty Automatic Hydraulic Dual-Vice Hitch Feed (0.1 mm) |
320 × 530 mm (12.6" × 20.9") Ø330 mm (Ø13.0") |
300 × 350 mm (11.8" × 13.8") Ø300 mm (Ø11.8") |
300 × 220 mm (11.8" × 8.7") Ø220 mm (Ø8.7") (60°/30°) |
3.75 kW (5.0 HP) 4570 × 34 × 1.1 mm (179.9" × 1.34" × 0.043") 1950 kg (4,299 lbs) |
| Infeed & Indexing Mechanism |
CF-350AM: Economic powered roller infeed bed (feeding tolerance ±0.2 mm), with hardened wear strips and
motion sensor blade slip/break stop. CF-530HBM: Heavy-duty hydraulic dual-vice hitch feed table (positioning accuracy 0.1 mm, single feed stroke 500 mm / 19.7", multi-indexing up to 4500 mm / 177"). |
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✅ Standard Factory Inclusions
- Stepless Inverter Blade Speed (CF-350AM: 35–90 m/min / CF-530HBM: 25–95 m/min)
- Machine-Integrated Material Infeed Bed Table
- Tungsten Carbide Blade Guides with Roller Support
- Hydraulic Vise Clamping with Regulated Feed Control Valve
- High-Volume Recirculating Flood Coolant Delivery System
- Motion Sensor Blade Slip & Breakage Auto-Stop Protection
- Complete Maintenance Toolkit and Operator Manual
⚙️ Optional Upgrades & Accessories
- Optional NC Control: multi-group cutting length and quantity batch input
- Micro-Drop MQL Mist Lubrication Unit (Clean Near-Dry Sawing)
- Hydraulic Top Vertical Clamps (Bundle Sawing of Tubes & Profiles)
- 1m / 2m / 3m / 5m Modular Non-Motorized Passive Idle Roller Conveyor Tables
- Heavy-Duty Passive Material Support Stands
🚀 How to Optimize the AM & HBM Series for Unattended Continuous Production
1. Upgrade to NC Batch Controller: Input multiple cut lengths and piece quantities into the NC controller;
the saw automatically advances, cuts, and transitions through cut orders.
2. Install Hydraulic Overhead Clamps: When processing thin-wall tubing or small angle iron, engage hydraulic
top clamps to multiply output per cutting cycle.
3. Add Modular Passive Roller Tables: For 6m to 12m long stock, connect 3m or 5m passive idle roller tables
to ensure level material feeding without sagging.
AM & HBM Series Selection Guide & Technical FAQ
Q: What is the key operational difference between automatic (AM/HBM) and semi-automatic (M) band saws?
Semi-automatic models (M Series) require the operator to manually advance material between cuts, utilizing hydraulics solely for clamping and downfeed. Fully automatic models (AM/HBM Series) integrate powered roller or hydraulic dual-vice hitch feed mechanisms governed by a PLC controller (optional NC multi-group programming) to execute unattended, continuous batch sawing.
Q: How do the feeding mechanisms and tolerances differ between CF-350AM and CF-530HBM?
CF-350AM utilizes an economic power roller-driven vise feeding system with a positioning tolerance of ±0.2 mm, ideal for medium shops cutting tubing and standard profiles.
CF-530HBM features a heavy-duty hydraulic dual-vice hitch feed system (500 mm single stroke, multi-indexing
up to 4500 mm) delivering industrial-grade 0.1 mm positioning accuracy for heavy structural sections and thick-wall
pipes.
Q: What miter cutting angle ranges do the AM and HBM series support?
Both models support 90° straight cuts down to 45° single miter cuts. In addition, the CF-530HBM swivels up to 60° (30° acute miter), matching acute angle fabrication for trusses, framework joints, and pipe beveling.
Q: Are infeed and outfeed roller tables included with standard AM/HBM models?
Standard AM and HBM units include an integrated machine infeed bed. When handling long 6m to 12m steel stock, Big Stone provides modular 1m, 2m, 3m, and 5m heavy-duty non-motorized passive idle roller conveyor tables as optional factory accessories.
Original Manufacturer Quality Assurance: Big Stone Machinery Co., Ltd., based in Hsinchu,
Taiwan (Plant area: 4,650 m² / ~50,052 sq ft / 1,406 坪), manufactures industrial metal band saws certified under CE
European Safety Standards, verified under ISO 14064-1:2018 greenhouse gas inventory standards, and is an official
Member of the Taiwan Association of Machinery Industry (TAMI), with 17 consecutive editions of TIMTOS trade show authority. Machines support ASTM
A36/A572, JIS SS400/SM490, and EN10025 S235/S355 structural steel cutting standards.
• Direct Factory Contact: +886-3-5931688 | Official Email: info@bigstone.com.tw |
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Automatic Miter Cutting Metal bandsaw
