A robotic integrator called ZAYTRAN and issued us what they perceived to be
an impossible challenge. It should be mentioned that this is not an integrator
that ZAYTRAN had worked with in the past, so it can be assumed that this
challenge had been issued and refused by the other gripper manufacturers. The
integrator said this, “We need a gripper that has one inch of stroke, has enough
force and is robust enough to handle a hard disk platter while experiencing high
acceleration and deceleration forces.” This didn’t seem difficult… they went on
to explain the hard part. “The grippers will have to be rated for use in a Class
1 clean room environment.” OK, that’s getting challenging. “Also, the grippers
will be in contact with DI water, so the materials used for the custom design
will need to be able to withstand DI water contact.” All right, now this is
getting interesting. “Finally, the gripper must weigh less than 200 grams!”
Then, I heard him chuckle and he asked the question, “ Will you make me a custom
gripper that can do all of these things?” We respectfully said no.
We said no because we did not have to create a custom gripper to function within
their application requirements. ZAYTRAN already manufactures a line of standard
grippers that will easily do the job. The Magnum-PET series, the clean room
version of the Magnum gripper family, can perform all of these duties. The
Magnum PET-130-26 was recommended for this job since the customer required a 1
inch stroke. The Magnum PET is rated for use in class 1 clean rooms and there
are independent lab reports that back up this claim. These grippers are
constructed entirely of PET and stainless steel so they are impervious to DI
water and moreover will not pollute the DI water. The Magnum PET-130-26 weighs
only 170 grams, which is well under the 200-gram weight limit set by the
customer. The Magnum grippers were designed with solid bearing rails that run
the entire length of the moving jaw. This system, even when made out of PET, can
tolerate torque in excess of 88 in/lbs., which will be more than enough to
handle the relatively light hard disk.
Needless to say, the new customer was very impressed. Not only did they not have
to build their own gripping system, but the cost of the grippers were far less
then they had planned since the Magnum-PET-130-26 grippers are standard items.
This application was a complete success and ZAYTRAN now has a satisfied new
customer.
Do you have an application for a class 1 clean room gripper? Will your grippers
need to tolerate harsh acids or DI water? Do you need grippers that weigh less
than 200 grams and still have 29lbs of grip force?
Call ZAYTRAN we have an off the shelf solution for you custom application.
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Call us at 440-324-2814 : FAX 440-324-3552 email support@grippers.com PO Box 1660 : Elyria, Ohio 44036 U.S.A. © Copyright ZAYTRAN, Inc All Rights Reserved. MAGNUM and XRAY Are Registered Trademarks of ZAYTRAN, Inc.
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