DMoneyAllstar
Plastic
- Joined
- Feb 27, 2018
So I picked this gigantic bandsaw for $227.00 out the door at a local surplus warehouse. I planned on gutting the pulleys, tracking mechanism, and blade welder for making a big sawmill. However now I'm considering just keeping it as a bandsaw for my hobby shop for metal and a little woodworking.
The saw is equiv. to the MSC #09514647, made in Taiwan, 2hp, 220/440 3ph, 1300#. Motor has 1989 date on it. The saw looked complete at first, but when I pulled the rear panel off, I found the main 1" driveshaft to be sheared and most of the drivetrain missing. Explains the price.
There are (2) versions of this saw: [1] uses the Reeves-type variable transmission, and [2] uses a selectable gearbox. What's weird about this saw is that it's got the speed-adjusting linkage of the CVT system, but also has the selectable reduction box of the non-CVT type. Could be someone's Frankenstein? No idea. The chains for the reduction box are there, therefore I have to believe it was last running as a non-CVT type saw. Looking at the parts diagrams and making some assumptions about sheave diameters, sprocket count, etc...the speed range would've been pretty limited without a CVT (330-to-1425 FPM).
While the selectable gearbox increases the speed range, it's still pretty limited. Therefore I'll eventually install a VFD to further expand the speed range. According to the current MSC catalog, the "new" model saw is capable of 82 to 1496 FPM. With the 1720rpm motor on a VFD from 65 to 15Hz, my drivetrain calculations say I can match the range. With the swap of the drive pulley, I can prob get higher FPM better for wood if needed. On the gearbox mfg'er's website, they show an example with 850 rpm input and 1700 rpm output (Fure Shing FS-402, circa 1988). In my math, I'm at 315 rpm max on the input and 630 rpm on the output, so I'm well within the means of the gearbox.
Being this motor is 33yr old and from Taiwan, it will get replaced once everything is up and running.
Here is the parts diagram and the geartrain (Excel). I've got the motor, the gearbox, the left upright bracket, couple bearing blocks, chains, and some hardware. Missing the intermediate sprockets, shafts and sheaves. Waiting for a quote on all the missing guts, but I imagine a lot of it will be long lead-time. And a lot of it is just McMaster-Carr and Grainger type stuff. I've got a S1 Bridgeport and a cnc plasma, so I think I'll end up remfg'ing the bracket myself, and sourcing most of the geartrain. Will also need new blade rubber, grinding wheel ($11) & grinder cover (I'll fab).
The saw is equiv. to the MSC #09514647, made in Taiwan, 2hp, 220/440 3ph, 1300#. Motor has 1989 date on it. The saw looked complete at first, but when I pulled the rear panel off, I found the main 1" driveshaft to be sheared and most of the drivetrain missing. Explains the price.
There are (2) versions of this saw: [1] uses the Reeves-type variable transmission, and [2] uses a selectable gearbox. What's weird about this saw is that it's got the speed-adjusting linkage of the CVT system, but also has the selectable reduction box of the non-CVT type. Could be someone's Frankenstein? No idea. The chains for the reduction box are there, therefore I have to believe it was last running as a non-CVT type saw. Looking at the parts diagrams and making some assumptions about sheave diameters, sprocket count, etc...the speed range would've been pretty limited without a CVT (330-to-1425 FPM).
While the selectable gearbox increases the speed range, it's still pretty limited. Therefore I'll eventually install a VFD to further expand the speed range. According to the current MSC catalog, the "new" model saw is capable of 82 to 1496 FPM. With the 1720rpm motor on a VFD from 65 to 15Hz, my drivetrain calculations say I can match the range. With the swap of the drive pulley, I can prob get higher FPM better for wood if needed. On the gearbox mfg'er's website, they show an example with 850 rpm input and 1700 rpm output (Fure Shing FS-402, circa 1988). In my math, I'm at 315 rpm max on the input and 630 rpm on the output, so I'm well within the means of the gearbox.
Being this motor is 33yr old and from Taiwan, it will get replaced once everything is up and running.
Here is the parts diagram and the geartrain (Excel). I've got the motor, the gearbox, the left upright bracket, couple bearing blocks, chains, and some hardware. Missing the intermediate sprockets, shafts and sheaves. Waiting for a quote on all the missing guts, but I imagine a lot of it will be long lead-time. And a lot of it is just McMaster-Carr and Grainger type stuff. I've got a S1 Bridgeport and a cnc plasma, so I think I'll end up remfg'ing the bracket myself, and sourcing most of the geartrain. Will also need new blade rubber, grinding wheel ($11) & grinder cover (I'll fab).