Contact
We are ready to help
At Holm & Holm we are specialists in professional equipment for plastics processing and welding solutions. We advise and supply to professionals and companies that need reliable, technically precise and thoroughly tested products.
- Advice on choosing equipment and accessories
- Technical support and product information
- Quotations and ordering
- General questions about our solutions
New tool: Calculate welding rod consumption for sheet welding
Directly to the right person
Call or write directly to one of us. We strive to answer quickly and competently, and we never compromise on the quality of our advice.
The office
Holm & Holm A/SSkalhuse 24
9240 Nibe · Denmark
+45 98 35 19 30info@holm-holm.dk
VAT no.: DK28715986
Opening hours
- Monday - Thursday
- 7:00 - 15:30
- Friday
- 7:00 - 12:00
- Saturday - Sunday
- Closed
We do not always leave when the clock runs out. If you are in the middle of a task outside opening hours, write to us - we can often still help, even when we are officially closed.
Explore the knowledge base
Find answers and professional guides before you call: welding methods, materials and indicative welding tables for screen or print.
PPWR og emballage
Do you need a PPWR declaration?
If you require a PPWR declaration for products and packaging from Holm & Holm, please send a specific enquiry. Include the product, customer number, and order number.
Go to PPWR enquiryFrequently asked questions
- How often should a welding machine be calibrated?
- The standard is annual calibration, i.e. every 12 months, in accordance with DVS 2207 and the equipment manufacturer's requirements. Some manufacturers state shorter intervals under heavy use - check the machine's instructions.
- Must the calibration certificate be available for inspection?
- Yes. The certificate with a valid date must be available for inspection for documented joints. The DK-VAND certification applies to the products, but the water utilities' requirements for documented joints assume a valid calibration certificate - otherwise the whole welding log is weak if a joint is questioned.
- Can you calibrate all brands?
- We offer service, spare parts and calibration for machines from most manufacturers. Call or write with the machine's brand and serial number, and we will find out.
- Where can I find more about calibration?
- In the guide Calibration of welding machines you will find intervals, documentation requirements and a printable checklist.
All content on Holm & Holm Viden is indicative and is not a substitute for professional review. When welding, always follow the pipe and fitting manufacturers' instructions as well as current standards and rules.