CF-325BS/BSN
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Automatic Column Type Band Saw
The Big Stone Machinery CF-325BS / CF-325BSN Automatic Column Type Metal Band Saw is engineered and manufactured directly at Big Stone factory in Taiwan for high-precision, continuous automated mass production of 370 mm wide structural steel, solid alloy bars, and bundled profiles. Featuring a 90° straight cutting capacity of up to Ø330 mm (Ø13.0 in. ) solid rounds and 330 × 370 mm (13.0 × 14.6 in.) rectangular sections. Built with a rigid dual-column portal frame and precision linear guideways, the BS model provides an extended 600 mm (23.6 in.) hydraulic shuttle feed stroke for long stock, while the BSN model provides a 450 mm (17.7 in.) feed stroke with standard Hydraulic Top Nesting Pack Clamps for bundle sawing. Powered by a 3.75 kW (5.0 HP) inverter variable drive (20–120 m/min / 66–394 FPM), PLC batch control, and electric chain chip conveyor for vibration-free, unattended production.
Why Is the CF-325BS-BSN the Ultimate Automatic Portal Band Saw for 370 mm Wide Steel & Bundle Cutting?
Linear Guideway Portal Rigidity & Perpendicular Precision: Symmetrical dual columns guided by heavy-duty linear guideways eliminate cutting chatter during heavy downfeed, ensuring cutting perpendicularity within 0.1 mm across massive 330 × 370 mm alloy steel cross-sections.
Extended 600 mm Shuttle Feeder (BS) vs. Hydraulic Pack Clamping (BSN): The BS model's 600 mm single stroke minimizes repositioning cycles on 6-meter raw bars, while the BSN model's hydraulic pack clamp prevents individual tube movement during high-volume bundle sawing.
Features
What Core Engineering Technologies Make the CF-325BS-BSN a Leading Automatic Portal Band Saw?
Engineered for steel service centers, heavy equipment manufacturing, and multi-pipe bundle processing, the CF-325BS/BSN combines portal frame stability with high-productivity automation:
Dual-Column Linear Guideway Architecture
Heavy-duty portal guide columns with low-friction linear guideways provide superior rigidity, ensuring smooth downfeed and flawless squareness on 330 mm cross-sections.
Long-Stroke Shuttle Feeder (BS 600 mm / BSN 450 mm)
BS model delivers a 600 mm (23.6 in.) single stroke to streamline long-bar production; BSN model features 450 mm (17.7 in.) feed with automated multi-index hitch-feed cycling.
Hydraulic Top Nesting Pack Clamps (BSN Standard)
BSN includes hydraulic vertical pack clamps to compress and lock bundles of tubes, solid rods, or structural channels firmly, eliminating blade pinching or bar rotation.
Automatic Guide Arm Width Adjustment
Guide arm automatically adjusts span according to workpiece width to minimize unsupported blade span; tungsten carbide guide inserts maximize 34 mm blade life.
3.75 kW (5.0 HP) Inverter Variable Speed
Wide-range stepless inverter control across 20–120 m/min (66–394 FPM) allows instant speed matching for medium carbon steel, stainless alloys, or structural steel.
Chain Chip Conveyor & Multi-Sensor Safety
Continuous electric chip evacuation keeps the coolant reservoir clean; built-in blade slippage/breakage shut-off and out-of-stock sensors protect unattended operation.
CF-325BS / CF-325BSN Automatic Column Band Saw Technical Specifications Matrix
Standard original manufacturer specifications from Big Stone Machinery (Taiwan). All machines undergo 100% geometric alignment and load cutting verification:
| Specification Parameter | Metric Units | Imperial / US Customary Units |
|---|---|---|
| 90° Solid Round Bar Cutting Capacity | Ø330 mm | Ø13.0" |
| 90° Rectangular / Section Cutting Capacity (H × W) | 330 × 370 mm | 13.0" × 14.6" |
| Saw Blade Dimensions (Length × Width × Thick) | 4430 × 34 × 1.1 mm | 174.4" × 1.34" × 0.043" |
| Blade Linear Speed (Stepless Inverter) | 20 – 120 m/min | 66 – 394 FPM |
| Main Blade Drive Motor | 3.75 kW Inverter Motor | 5.0 HP Inverter Motor |
| Hydraulic System Motor | 0.75 kW | 1.0 HP |
| Coolant Pump Motor | 0.1 kW | 1/8 HP |
| Wire Brush Motor | 0.1 kW | 1/8 HP |
| Single Stroke Feeder Length | 600 mm [BS] / 450 mm [BSN] | 23.6" [BS] / 17.7" [BSN] |
| Work Table Bed Height | 780 mm | 30.7" |
| Cutting Accuracy & Repeatability | ±0.1 mm | ±0.004" |
| Machine Net Weight | Approx. 2,300 kg [BS] / 2,500 kg [BSN] | Approx. 5,070 lbs [BS] / 5,511 lbs [BSN] |
| Overall Machine Dimensions (L × W × H) | 2450 × 1520 × 2000 mm | 96.5" × 59.8" × 78.7" |
| Roller Table Configuration Note | Standard machine includes NO infeed/outfeed roller tables. Optional 2m heavy-duty roller tables and digital length stops available. | |
Standard Factory Equipment
- Dual-Column Linear Guideway Portal Architecture
- Auto Blade Guide Arm Width Adjustment & Carbide Inserts
- Hydraulic Blade Tensioning System with Pressure Gauge
- Full-Stroke Hydraulic Dual Vises (3-Point Support Design)
- Hydraulic Top Nesting Pack Clamps (BSN Standard, BS Optional)
- Electric Chain Chip Conveyor & Automated Multi-Index Hitch Feeder
- Variable Frequency Blade Inverter (20–120 m/min) & PLC
- Bi-metal blade × 1 (4430 × 34 × 1.1 mm) & complete toolkit
Optional Upgrades & Accessories
- NC Precision Touchscreen Controller (Job Memory Upgrade)
- 2m Industrial Heavy-Duty Infeed/Outfeed Roller Conveyor Tables
- Micro-Mist Coolant Lubrication System (MQL System)
- Custom Heavy-Duty Material Handling Integration
How to Configure Automated Batch Cutting on CF-325BS/BSN in 3 Steps
With the intuitive PLC touchscreen interface and long-stroke shuttle feeder, operators execute high-precision batch cuts in 3 simple steps:
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1
Step 1: Input Cutting Parameters on PLC Touchscreen
Access the PLC interface to enter target cut lengths, batch quantities, and optimal blade linear speed (20–120 m/min); the system automatically calculates the stroke path.
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Step 2: Position Stock and Activate Full-Stroke Hydraulic Vises
Load solid bars or bundled profiles onto the roller bed; engage full-stroke hydraulic vises (and BSN hydraulic top nesting clamps) for rigid positioning.
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3
Step 3: Start Automated Sawing and Continuous Chip Evacuation
Press Cycle Start; the saw bow downfeeds along linear guideways with continuous shuttle feeding and automatic chip removal until batch completion.
Specification
How to Maintain CF-325BS/BSN for Long-Term Linear Guideway Accuracy: 4-Phase Protocol
Big Stone official 4-phase preventive maintenance protocol for dual-column portal band saws:
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1
Daily Routine
Check hydraulic blade tension gauge reading, inspect bi-metal teeth condition, check coolant tank levels, and confirm electric chip conveyor operation.
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2
Weekly Inspection
Clear metal chips from linear guideways and shuttle vise beds, inspect oil lubrication films, and check hydraulic fluid levels.
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3
Monthly Calibration
Verify dual-column vertical alignment with dial indicators and verify PLC shuttle feed length repeat accuracy (±0.1 mm).
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4
Quarterly Maintenance
Replace hydraulic system oil (ISO VG 46/68) and filter cartridges, check drive belt tension and motor insulation, and test blade slippage/breakage safety interlocks.
Verified Field Customer Reviews
Extended 600 mm Shuttle Stroke and Flawless Bundle Clamping
The 600 mm feeder stroke on the BS model significantly cuts down cycle times when processing 6-meter steel beams. Our second facility runs the BSN model; its hydraulic nesting clamps secure bundles of pipes with zero slippage or wandering. Linear guideways hold perpendicularity well within 0.1 mm.
Smooth Inverter Speed Adjustment and Heavy Cast Portal Rigidity
Inverter variable speed allows us to fine-tune blade speeds instantly when switching from stainless steel to solid carbon alloy bars. Full- height 330 mm hydraulic vises lock heavy H-beams rigidly without deformation. The electric chip conveyor prevents chip build-up completely.
CF-325BS/BSN Automatic Portal Band Saw: Frequently Asked Questions (FAQ)
Original Factory Manufacturing & Quality Standards: Big Stone Machinery Co., Ltd. is
founded and based in Hsinchu, Taiwan.
All metal band saws comply with CE European Safety Standards (Declaration of Conformity) and ISO 14064-1:2018 low-carbon manufacturing verification. Our modern plant spans 4,650 m² (~15,000 sq
ft / 50,052 sq ft) in Qionglin Township, backed by 30+ years of global machine tool exports, 1-year comprehensive warranty, and complete spare parts
stock.
• Direct Factory Contact: +886-3-5931688 | Email: info@bigstone.com.tw |
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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
