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Amada CNC Band Saw — CTB400

Programmable Automatic Metal Cutting

ctb400

Overview

CNC-controlled band saws for the use with carbide tipped band saw blades, producing more efficient and accurate cutting than is possible using conventional Bi-metal blades.

Saw Head Frame

The rigid ‘C’ section frame carries the mountings for the two band wheels, heavy duty worm drive gear reducer, the band drive motor and saw guide arm mounting supports. The saw head is supported and guided by LM linear bearings. The bearing rail is mounted on the head’s vertical center of gravity for better stability.

Drive Wheel Transmission

The drive wheel worm gear transmission is designed and built by Amada to provide high efficiency speed reduction, which requires no external cooling, to deliver more power to the large diameter drive flange which is mounted on the drive wheel. This flange ensures that this developed torque is transferred to the blade with no strobing, enabling the machine to efficiently cut high alloys as well as free machining materials. The entire drive assembly up to the wheel is sealed against chips or cutting fluid to for long maintenance free operation.

CNC Saw Feed Control

The CNC controller has 220 materials pre-programmed and provision for 100 user materials. The controller will automatically vary the feed rate of the saw head for materials with a changing cross section to ensure the fastest cutting time and best surface finish. When using Amada Triple Chip Carbide blade on a changing cross section, the cutting rate will be significantly faster than conventional HSS blades with an exceptional surface finish not available with normal band saw blades.

Band Deviation Monitor

The CNC controller constantly monitors the cutting and blade conditions including the twist of the saw blade. The maximum allowable twist is specified for each direction. When either of these values is exceed, the preset parameters in the automatic blade runout detector the machine will cease cutting and indicate the reason for stopping.

Smart Multiple Index

The NC micro processor controls the index cycle enabling the machine to cut different lengths in sequence from the same work piece and provides a ‘Smart Multiple Index’ cycle for cut lengths greater than the single index stroke of 11.8 in. (300 mm). The index cycle makes full length index passes.

Multiple Index

The machine control has the capability to make up to 2 index passes giving a maximum cut length of 31.5 in. (800 mm.) in automatic.

Split Front Vise

The work holding vise is split so that it clamps the work piece on both sides of the cutting plane. This additional support in front of the cutting plane minimizes the burr on the cut pieces.
 

Specifications

Machine Capacity

Round
1.18 – 16.9 in.
30 – 430 mm
Rectangle W x H
1.18 – 16.9 x 16.9 in.
30 – 430 x 430 mm
Weight
5,500 lbs. Max.
2,500 kg Max.

 

Saw Blade

Width
1 1/2 in.
40 mm
Gage
0.055 in.
1.40 mm
Length
197 in.
5,000 mm
Band twist
60 °
Band speed
45-490 fpm.
15-150 mpm.

 

Band Wheels

Diameter
20.67 in.
525 mm
Material
Cast iron

 

Infeed & Discharge Tables

Height
39.4 in.
1,000 mm

 

Index Length

Front vise (infeed side)
11.81 in.
300 mm
Rear (discharge side)
15.8 in.
400 mm
Smart multiple index passes to
99.999 in.
9999.9 mm
Remnant length (single piece)
0.6 in.
15 mm

 

Motors

Drive
10 hp
7.2 kW.
Hydraulic
2 hp
1.44 kW.
Cutting fluid
0.24 hp
180 W.
Chip brush
0.12 hp
100 W.

 

Fluid Capacities

Hydraulic
9.2 gal
35 l.
Hydraulic pump delivery
6.4 gpm.
35.0 lpm.
Hydraulic pump capacity
498 psi
27 kg/cm ²
Cutting  fluid
60 gal.
230 l.
Finish
Urethane hammer effect
Color
Amada focal orange and black
Machine weight
7,710 lbs.
3,500 kg
Floor area
88.9 x 89 in.
2,257 x 2,260 mm
Height
90.7 in. Max
2,304 mm Max

 

Electrical Equipment

Electrical enclosure with door mounted, fused main line disconnect switch. The panel contains motor starter relays with overloads, control voltage transformer (110 v secondary) terminal strips, timer module and control relays. The operator’s control interface has all manual and automatic function initiation. Supply voltage 208-230/220-460v/60/3.
 

Standard Equipment

  • CNC controlled material indexing
  • CNC cutting feed & band speed control based on alloy & shape
  • CNC self diagnostics for all machine systems
  • Plasma display of all system parameters
  • Memory backup by built in battery
  • Automatically crop cut cycle
  • Automatically cut different lengths from the same bar
  • Automatic band deviation monitor
  • Automatic diagnostics of machine systems
  • Automatic work height and rapid approach control
  • Automatic slat chip conveyor
  • Automatic chip brush positioning
  • Direct band drive via inverter speed control & worm gear reducer
  • Access door safety interlock switch
  • Anti vibration blade roller
  • Hydraulically clamped tungsten carbide saw blade guides
  • Independent lateral travel of both material clamping vises
  • Smart multiple index cycle
  • Idler wheel motion detector
  • Front mounted digital index length setting
  • Powered manual index vise positioning
  • Hydraulically clamped tungsten carbide saw blade guides
  • Cutting fluid nozzles for cut lubrication

 

Accessories

Vertical clamps for bundle cutting of multiple bars
Capacity
2-6 in. wide x 4.5-7.9 in.
50-150 mm wide x 115-200 mm
Remnant end
7.7 in.
195 mm

 

Idler Roller Table

Length
87 in.
2,200 mm
Capacity
3,300 lbs.
1,500 kg

 

Roller Stand

Capacity
1,100 lbs.
500 kg

 

Adjustable vise pressure control

Adjustable vise pressure control for the clamping of thin walled tubular sections.

Zero clamp base

Mist coolant system for application of bi-polar cutting fluids.

 

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