Jump to content

JMA corbins too thick to go in keyway


Recommended Posts

I'm sure I'm not the only complete business slag in the the forum. I'll buy blanks from anyone. JMA blanks I've found to fat and changed to hd.

Ing s

Un 11

Eva 1d

Corbin blanks. Never had a problem with. lately had an issue with er2d. Not enough to change supplier yet, but hd ul2 worked a treat .

Both sks and davenport are important to me. Fairly certain someone will start banging on about how good silca blanks are !

Link to comment
Share on other sites

  • 1 month later...

I have used Silca for 35 years and can count on 1 hand the problems i have had.

 

I usually only stock other blanks if Aldridges are out of stock of a Silca blank.

 

Is it that Aldridge are expensive compared to SKS for blanks or just that Silca are quite a bit more expensive?

I realise that selectively it's probably worth going for Silca just wondering if one can negotiate discount or price break terms with Aldridge 

Link to comment
Share on other sites

There are more than one Corbin blank, HD supply about 4 (I think) CB7 being the most popular but occasionally (count on one hand) they have not gone into the key hole, But it's not because of the CB7 I picked it up instead of the right blank!

I will try and post on here tomorrow the key number's

use the right blank and you will not have these problems.

Link to comment
Share on other sites

As a fan of the caliper yourself, locksafe, I would have thought you would agree that the different blank manufacturers do not make blanks of identical dimensions. My experience has shown that they differ slightly. Sometimes a slight difference is bad news. That was my point. If I'm wrong about this I will have to bin my £15 digital caliper and buy a £200 one.

Link to comment
Share on other sites

The problem is that everyone assumes if a key will not go in it is to thick rather than it been a slightly different profile.

 

We have a Yacht club at Covenham resevoir that uses a Corbin lock that requires a Silca CB19 blank rather than a CB6.

 

They had been all over the place getting keys cut that would not fit and no one realised they did not fit as the profile was wrong.

 

Luckily they where recommended to use us and we have since cut 100's of them.

Link to comment
Share on other sites

Inconsistency in the manufacturing process.

 

The other reason is that the key is not lining up with the plug correctly and some blanks although they fit can seem as though they will not go in they are been inserted a little to high or low in the plug or at a slight angle.

 

I had a customer a few months back said a Mila key we had cut (using a genuine blank) would not fit, as it was on my way home i popped to have a look and the key went in both sides perfectly and worked as it should,

when she tried it again it would not fit i had to move the key down a little and then she could use it. The new blank had not worn and the tip was catching a part of the profile stopping it fitting in. I did it 3 more times then

she finally got it to fit she was pushing it hard at a slight angle so  there are other reasons.

 

I have been to the Silca factory and seen how thorough the production process is and how often they measure and recalibrate the machines used in the manufacturing process. Yes they are probably the most expensive

but how many times has someone complained on this forum about a Silca blank not fitting ?.

Link to comment
Share on other sites

Inconsistency in the manufacturing process.

 

The other reason is that the key is not lining up with the plug correctly and some blanks although they fit can seem as though they will not go in they are been inserted a little to high or low in the plug or at a slight angle.

 

I had a customer a few months back said a Mila key we had cut (using a genuine blank) would not fit, as it was on my way home i popped to have a look and the key went in both sides perfectly and worked as it should,

when she tried it again it would not fit i had to move the key down a little and then she could use it. The new blank had not worn and the tip was catching a part of the profile stopping it fitting in. I did it 3 more times then

she finally got it to fit she was pushing it hard at a slight angle so  there are other reasons.

 

I have been to the Silca factory and seen how thorough the production process is and how often they measure and recalibrate the machines used in the manufacturing process. Yes they are probably the most expensive

but how many times has someone complained on this forum about a Silca blank not fitting ?.

 

I understand most of these problems Graham, I have seen them many times, I was suggesting that there are many reasons why the key does not enter the lock, even if the correct blank has been cut. No matter how much measuring with callipers or vernier gauge there will always be the rogue key to keep wind you up.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...