Stress grading machine on Ebay

[agg221]

Don't often see these for sale:

 

Cook bolinder SG AR wood stress test machine | eBay

 

No connection to me, but if it genuinely is in good working order and has recent test certificates then it could be a very low cost entry route for anyone considering supplying graded softwood.

 

Alec

[Starscream]

Excuse my lack of knowledge, just being nosey....... What does it do?

[agg221]

Excuse my lack of knowledge, just being nosey....... What does it do?

 

When you use timber in construction a strength grade is usually specified. For hardwood, and large softwood beams, this is based on visual inspection, looking for things like knots, waney corners and insect damage etc.

 

For smaller softwood sections, things like joists and rafters, grading is done by mechanically testing each piece of wood, after which it is stamped as passing. That's what this machine does.

 

Alec

[Starscream]

When you use timber in construction a strength grade is usually specified. For hardwood, and large softwood beams, this is based on visual inspection, looking for things like knots, waney corners and insect damage etc.

 

For smaller softwood sections, things like joists and rafters, grading is done by mechanically testing each piece of wood, after which it is stamped as passing. That's what this machine does.

 

Alec

 

Ah ok, interesting. Thanks!

[Graham w]

well spotted! if it requires a test certificate where would you go to get one?

 

it looks as if it needs a considerable air supply and three phase

[agg221]

well spotted! if it requires a test certificate where would you go to get one?

 

it looks as if it needs a considerable air supply and three phase

 

If there are no old test certs then the mfr still appears to be in business or TRADA would be able to help.

 

Alec