G4250 Double Column Horizontal Metal Band Sawing Machine
The G4250 is the largest machine in a four-model double column band saw range covering the G4228, G4235, G4240 and G4250. It saws to 500x500x500mm, running a 5450x41x1.3mm band from a 5.5KW main motor. Two columns carry the saw head rather than one, which keeps the blade square to the work as the head comes down and st...
What This Machine Does
The G4250 is the largest machine in a four-model double column band saw range covering the G4228, G4235, G4240 and G4250. It saws to 500x500x500mm, running a 5450x41x1.3mm band from a 5.5KW main motor. Two columns carry the saw head rather than one, which keeps the blade square to the work as the head comes down and stops the cut wandering on a deep section. Two things make it the production choice over a hack saw: cut-off time is four to five times that of a hack sawing machine, and the kerf is 2mm narrower, so on expensive alloy bar the material you save across a batch is real. Feeding is hydraulic with stepless speed regulation, so the operator dials in feed rate to suit the material instead of picking from fixed steps. Clamping is hydraulic and the machine stops automatically at the end of the cut. Operation and maintenance are kept simple, and the machine also takes a 45 degree cut on pipe and section.
Why Buyers Choose This Machine
- Cut-off time is four to five times that of a hack sawing machine on the same stock
- Kerf is 2mm narrower than hack sawing which saves material on every cut of costly alloy bar
- Double column head keeps the band square through a deep cut so the face does not wander
- Hydraulic feed with stepless speed regulation lets the operator tune feed to the material
- Hydraulic clamping and automatic stop at end of cut free the operator during the cycle
- 500x500x500mm sawing range on the G4250 covers heavy billet and section
- 45 degree cutting on pipe and section without a second setup
Where G4250 Double Column Horizontal Metal Band Sawing Earns Its Place
Problems It Solves
- Hack sawing ties up hours of cutting time that a band saw does in a fraction
- Wide kerf throws away expensive alloy material on every cut
- A single column saw head lets the blade drift out of square on deep sections
- Fixed feed steps force a compromise feed rate across different materials
- An operator has to stand by a saw with no automatic stop at end of cut
- Mitre cuts on pipe get done on a second machine or by hand
Who It Is For
- Production machine shops cutting heavy stock in volume
- Forging and heat treatment plants preparing billets
- Steel and alloy stockholders selling cut lengths
- Pipe and structural fabricators needing angled cuts
- Distributors supplying band sawing machines to heavy industry
Application Scenarios
- Production cut-off of heavy billet for a forging or machining line
- Cutting large diameter alloy bar where kerf loss affects material cost
- 45 degree mitre cutting of metal pipe for fabricated structures
- Stockholder cutting of customer lengths from heavy mill bar
- Die and mould shops breaking down tool steel plate and block
- Stepping down to G4228 G4235 or G4240 where a smaller range suits the shop
Technical Detail
Technical Features
- Double column horizontal band saw head
- Max sawing range 500x500x500mm on the G4250
- 5450x41x1.3mm saw belt
- Sawing wire speeds of 27 45 and 69
- 5.5KW main motor on the G4250
- Hydraulic feeding with stepless speed regulation
- Hydraulic clamping with automatic stopping
- 45 degree cutting capability on pipe and section
Specifications
| Machine type | Double column horizontal metal band sawing machine |
|---|---|
| Models | G4228 / G4235 / G4240 / G4250 |
| Max sawing range | G4228 280x280x280mm / G4235 350x350x350mm / G4240 400x400x400mm / G4250 500x500x500mm |
| Saw belt | G4250 5450x41x1.3mm |
| Sawing wire speed | 27, 45, 69 mm/min |
| Clamping method | Hydraulic |
| Main motor power | G4228 3kw / G4235 3kw / G4240 4kw / G4250 5.5KW |
| Voltage | 380V 3 phase standard, 220V 3 phase available on G4235 |
| Mitre cutting | 45 degrees |
Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.
How It Is Built and What Can Be Changed
Operations Performed
- Band sawing
- Cut-off
- Mitre cutting at 45 degrees
- Pipe cutting
Quality Control
- Blade tracking and squareness checked through a full depth test cut
- Hydraulic feed and clamping circuits pressure tested for leaks
- Stepless feed regulation verified across its range under load
- Automatic stop at end of cut function confirmed before packing
- Main motor running current and column alignment checked on the assembled machine
Customisation Options
- Model chosen from G4228 G4235 G4240 or G4250 against your largest section
- Supply voltage phase and frequency built for your market
- Saw band specification matched to your material and section size
- Coolant and swarf handling arrangement specified with the machine
- Manual and control markings prepared in your working language
How It Compares With the Alternatives
| XAIMC hack sawing machines such as GL7132 | The band saw cuts four to five times faster with a 2mm narrower kerf; the hack saw is the cheaper machine where cut volume is low |
|---|---|
| Smaller models G4228 G4235 and G4240 | Same double column design scaled by capacity and motor power. Pick by your largest section rather than buying range you will not use |
| Single column band saw | A second column holds the head square through a deep cut, which is what keeps the cut face true on 500mm sections |
Running the Machine
Step 1
Clamp the stock hydraulically and support long bar on roller conveyor behind the machine
Step 2
Set the head to 45 degrees if you are cutting a mitre on pipe or section
Step 3
Choose the sawing wire speed for the material you are cutting
Step 4
Set feed rate using the stepless regulation and start light on a new band
Step 5
Check coolant is reaching the cut before starting the cycle
Step 6
Run the first cut and inspect the face for squareness and finish before running the batch
Step 7
Let the automatic stop end the cycle and clear swarf before loading the next piece
Related Applications and Guides
General Machining Job Shops
Job shops take whatever work comes through the door, which means their equipment has to cover a wide range rather than do one thing perfectly. XAIMC s
How to Choose a Metal Band Saw for a Fabrication Shop
A metal band saw cuts bar, tube, section and plate to length ahead of machining, welding and assembly, and the right one depends on section size, mate
Questions About G4250 Double Column Horizontal Metal Band Sa
How much faster is it than a hack sawing machine?
Cut-off time is four to five times that of a hack sawing machine. The saw kerf is also 2mm narrower, which is worth counting if you cut expensive alloy bar.
Which model suits our work?
Choose by your largest section: G4228 to 280mm, G4235 to 350mm, G4240 to 400mm and G4250 to 500mm. Send us your stock list and we will confirm.
Can it cut pipe at an angle?
Yes, the machine takes a 45 degree cut, which is what most fabricated pipe and frame work needs.
What supply voltage is it built for?
380V 3 phase is standard across the range and 220V 3 phase is available on the G4235. Tell us your voltage and frequency and we will confirm the build.
What band does the G4250 use?
5450x41x1.3mm. The smaller models take shorter narrower bands. We match the tooth pitch to your material, so tell us what you cut.
How is it packed and on what terms does it ship?
Machines ship crated for sea freight on FOB CFR or CIF. Ask us for crated dimensions and weight when you place the order so your forwarder can book space.
What are your payment terms?
30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.
Request a Quote on the G4250 Double Column Horizontal Metal Band Sa
Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.