Dear Peter, no problem with the refund, we have not received and email? outher than from a similar address???
I must say you have provoked great interest in our web shop as we had over 400 more hits than average.....
We have take all the critism onboard, and as a result we have split the business and rented an addition factory unit + employees....
Originally Posted by PRC
Firstly I would like to point out that unlike distributors, we use all our components in our CNC builds and machines, this gives us an edge when selling as we have first hand knowledge....and are very happy to help!
Ballscrews, we only sell ballscrews that have full material and process tracability (not Chinese) because of this our core customers are Industrial..this also means the "home user can buy with confidense"
Kress: we have resolved all issues here as we are now the UK distributor for the Kress milling grinding spindles with stock and spares.
Trapezoidal: Again we have full tracability, all in stock, shipping next day...
Pricing: I've just checked we are more competative on price...
Interesting
Could you elaborate, I am always happy to spend a bit more for a higher quality product? What advantage do I get buying ball screws from you rather than say Zap automation?
Do you stock any goods sourced from China? I avoid Chinese products where ever possible
John
That must limit your spending quite a bit.I avoid Chinese products where ever possible
John
Yeah, I hark back to a time when it was rare when checking the origin not to see a 'Made In England' label.
Al.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Our ballscrews are manufactured to JIS Standards, the whole process is controlled to BSI standards, from material purchase. For example having received you ballscrews and there is a problem we can work back and rectify your issue and also preven a repeat issue for another customer....We even know where the raw material was produced and its melt....the melt certificate is available.
We have tried using Chinese ballscrew product in our builds, we found they were too hard and destroyed the balls after extended use, this is "possibly OK, based on price" for the home user who is using the machine once or twice a week but for industrial assemblies running 24/7/365 the customer will only buy once!
Should a genuine warranty issue arrise we can replace the assemblies! no quibble...
We offer a full range and style of assemblies, from 6x1 to 24x56 upto 80x10
Interesting
Could you elaborate, I am always happy to spend a bit more for a higher quality product? What advantage do I get buying ball screws from you rather than say Zap automation?
Do you stock any goods sourced from China? I avoid Chinese products where ever possible
John
The opportunities are becoming very rare, so too often I have no choice.That must limit your spending quite a bit.
Yeah, I hark back to a time when it was rare when checking the origin not to see a 'Made In England' label.
Al.
John
Thanks for the explanation; does the same apply to all other products you stock?
John
There was a guy on ebay that used to bring in HiWin Ballscrews from Korea.
I bought a few and was quite impressed with the quality, When it came to turning the ends down, ceramic tooling was needed as they were hardened right through.
These were not rolled, but resembled precision ground.
I have never heard of a precision ball screw being too hard? They are generally case hardened anyway?
Al.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Kevin
Confirming I recieved the refund.
Peter
Hardness, we were not discussing machining the ends...yes, we also use ceramic tooling!
My post was advice, based on quite a few years experiance in the Industrial world...
If the balltrack in the spindle is 66Hrc and the balls are 60Hrc obviously the balls will wear at a greater rate than a spindle at 62Hrc and Balls at 60Hrc...Yes eventually there will be signs of ware in the "softer spindle" spindle.....
Also if the Hardness is 66Hrc and there is misalignment in the build it is possible to snap the spindle....in addition to this, having seen first hand the process of straightning the spindle before assembly is not carried out, therefore the stresses that are "unlocked" when turning and grinding the bearing journals is not rectified, and the assembly would fail the JIS standard.
Ground Ballscrews do have a greater depth of hardness...as they have to undergo the process of grinding, therefore greater heat / time must be applied to allow = greater heat penetration for the additional process of metal removal when grinding.
Rolled Ballscrew stock must be more malleable due to the rolling process to produce the balltrack, the spindles are case hardend to a shallow depth as this is the final process to produce a hardened balltrack.
Yes,
Round Rail, precision shafting is from Romania
Hiwin - Taiwan and Japan
Linear bearings - Taiwan
Our CNC machines - maufactured in the UK from our stock...
As this post is proving popular, we would like to advise all of you that we will begining for the "Newbe" free CNC Mach3 machining and training days at our newly aquired factory unit....
Please enquire for further details!
Subject covered:
Machine design / hands on product selection from our stock / Build ideas..
Mach3 config
Setting up and machining
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