Colchester triumph 2000

[Jacktegla]

Wondering if anyone can help, I've bought a colchester triumph 2000 and thry have a 7.5hp motor and i only have a 7hp rotary phase converter,

However back to the point I haven't picked it up yet and trying to sort a few bits potentially a slightly smaller motor and want to look through some stock ive been offered so if anyone would have a photo of a motorplate that woukd be great and if they'd know shaft diameter ? Thanks

 

[Agroshield]

Could you tell me one operation that you will do on the lathe that will require 7.5hp?

As it is a sophisticated machine, unless you start it up with the clutch engaged, the brake on and about 500kg hanging in the chuck, it is never going to demand that power under your ownership.

 

[brewdexta]

I've got a Colchester Triumph 2000 square head with the 7.5hp motor. I can get you a picture tomorrow but I'm with Agroshield, I would try it on your existing phase converter, you'll probably find that it's fine. Even on startup, it's unlikely to take anywhere near that as there's no load until you engage the clutch.

 

[Jacktegla]

Could you tell me one operation that you will do on the lathe that will require 7.5hp?

As it is a sophisticated machine, unless you start it up with the clutch engaged, the brake on and about 500kg hanging in the chuck, it is never going to demand that power under your ownership.

Exactly my thoughts and why im looking into a smaller motor.

 

[Jacktegla]

I've got a Colchester Triumph 2000 square head with the 7.5hp motor. I can get you a picture tomorrow but I'm with Agroshield, I would try it on your existing phase converter, you'll probably find that it's fine. Even on startup, it's unlikely to take anywhere near that as there's no load until you engage the clutch.

so should be OK id have thought just wanted to look into it as been offered motors but if you could grab a photo that would ge great thanks.

 

[minimutly]

The vfd decides what load the motor can take, well that and how you use it. If you set the ramp up such that starting current is within limits, and don't take massive cuts on high speed your existing motor and vfd will be fine, or at least I would expect 95% certain to be fine.
Oops, re - read, rotary phase converter. Try it, nothing to lose. As said already, it's a clutch start machine.

 

[brewdexta]

Today got away from me, I can't believe how busy I am now I'm retired!

I will take a pic of the motor plate in the morning.......

 

[brewdexta]

I managed to squeeze photographs of the motor plate in-between giving my neighbour a new nipple (on his digger), dog walking and taking kids to exams etc.

This where the motor nestles

Not normally an issue but I've torn my medial collateral ligament in my knee so getting down there to insert the phone was more problematic than I thought with the knee brace on. Twa**ing my head on one the power feed cogs didn't help my demeanor one bit!

Anyway, 30 useless pics later while swearing profusely, these are the two best photos that can be pieced together to get most of the plate.

Next question is shaft size. I don't think it can be easily measured from the pulley end and getting calipers behind it will be a pig so I would Google the motor details off the plate first.

 

[Mark Davison]

AI says "The D112M electric motor shaft diameter is typically 28mm. This is a standard size for motors in the D112M frame, according to various manufacturers"

 

[BrokenBiker]

I managed to squeeze photographs of the motor plate in-between giving my neighbour a new nipple

I hope retirement is that fun when I reach it

 

[Jacktegla]

I managed to squeeze photographs of the motor plate in-between giving my neighbour a new nipple (on his digger), dog walking and taking kids to exams etc.

This where the motor nestles

View attachment 499329

Not normally an issue but I've torn my medial collateral ligament in my knee so getting down there to insert the phone was more problematic than I thought with the knee brace on. Twa**ing my head on one the power feed cogs didn't help my demeanor one bit!

Anyway, 30 useless pics later while swearing profusely, these are the two best photos that can be pieced together to get most of the plate.

View attachment 499327
View attachment 499328

Next question is shaft size. I don't think it can be easily measured from the pulley end and getting calipers behind it will be a pig so I would Google the motor details off the plate first.

Thank you for that appreciate it, will look into it now