Terms
- Evaluation Fee: An evaluation fee of $25 per tool will be applied to all quotes.
- Approved or Warranty Repairs: Evaluation fee is waived.
- Denied Repairs: Evaluation fee stands.
- Tool will be shipped back unrepaired at sender’s expense or scrapped with permission.
- Shipping:
- Shipping costs to and from Kolver are the responsibility of the sender.
- Return Shipping: UPS is our preferred partner, requests for FEDEX will incur a $5 USD surcharge to their invoice. International shipments require a collect #.
- Warranty Consideration:
- Serial #’s shipped within 1 year of service request will be deemed Potential Warranty until evaluated. Additional information may be requested to confirmwarranty consideration.
- If serial # is not on the tool in its original form, warranty is voided
- If tool has been modified or repaired outside of Kolver’s service center, warranty is voided
- Shipping costs to Kolver are the responsibility of the sender. If tool is deemed warranty, Kolver will cover return ground shipping costs.
- Serial #’s shipped within 1 year of service request will be deemed Potential Warranty until evaluated. Additional information may be requested to confirmwarranty consideration.
- Repair Guarantee:
- 60-day warranty period from the date tool shipped from Kolver’s service center
- Warranty on parts and labor associated with repair. Warranty does not cover issued unrelated to repair components.
- Timeline:
- Allow approx 1-2 weeks for repair evaluation from the date it arrives at Kolver. Repair times will vary due to parts needed.
- Tools that sit in our warehouse for more than 60+ days after quote is sent will be returned using the provided UPS or FedEx collect number.
- Kolver North America will make at least (2) attempts to contact you via email and phone.
- Torque Testers:
- If your torque tester is out of spec and/or needs a new calibration certificate please contact Kolver directly. We will provide you with calibration documents & a trained calibration facility to work directly with.
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In bolted joints, the use of washers has become something of a default practice. At first glance, a washer seems like a simple component, just a flat disc placed between the nut or bolt head and the joint surface, but underneath this simplicity lies a complex interplay of mechanics and materials that can make or break the performance of your assembly over time.
Let's then take a look at why washers are used, how they impact bolt relaxation, and why the phenomenon of embedding, frequently underestimated, deserves special attention in joint design.
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KEEP READING
It's not unusual for someone new to precision fastening to complain about the lack of precision of electric screwdrivers when dealing with hard joints; in reality, a smart fastening system with torque control like Kolver's K-DUCER can be easily programmed to achieve superior precision even with the hardest joints.
As we have seen before, a hard joint is characterized by minimal movement between the mating surfaces during tightening, resulting in a rapid increase in torque once the fastener makes contact. This abrupt torque rise can lead to over-tightening, potential damage to components, or inconsistent clamping forces when working at too high of a speed, due to the inertia of all the rotating parts.
The K-DUCER addresses this challenge through its downshift function.
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Completely designed and manufactured at our Thiene, Italy headquarters, these angle heads are compatible with both the current-controlled PLUTO series and the tranducerized K-DUCER line.
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KEEP READING