Company
Your partner for bronze
As the Swiss market leader for bronze materials, Walter Looser AG can look back on a long history of success since its foundation in 1929.
Today, the Looser Bronze brand names are synonymous with the highest quality standards, combined with a wide range of semi-finished products such as tubes, rods, sheets and profiles made of copper alloys.
Thousands of very finely graded standard dimensions in stock as well as some innovative special materials characterize the company as a valuable supplier to the industry.
Certification ISO 9001 / 14001
The first SQS certification took place in 1998 with ISO 9002. in 2003, we switched to ISO 9001 and since April 2018, we have also been certified according to the environmental management standard ISO 14001.
Cutting Service Center
Benefit from our cutting services. We cut individual to series sections at short notice.
Approval for restamping
Traceability and material certification are becoming increasingly important. We have the corresponding approval.
Semi-finished products
Our semi-finished products are available in the following alloy groups:
- Multi-material tin bronzes and tin bronzes
- Aluminum bronzes
- Lead bronzes
- Special brasses
- Low-alloy wrought copper alloys
We stock semi-finished products in the form of round, flat, square and hexagonal bars and tube dimensions.
Finished products
We supply the following plain bearings for countless applications:
- Métafram BP 25 / FP 20
Self-lubricating sintered bearings - Wieland-B09
Rolled tin bronze bushes - Looser plain bearing LG 41
Standard bearing made of solid bronze
Finished parts according to drawing
From our entire product range, we offer you ready-to-install parts according to your customer drawing
Spezialitäten
Specialties
LB 50 round rods ground h8
For the bar turning industry, we stock ground round bars from 8-h8 to 50-h8 in Looser Bronze 50 (LB 50) from stock.
We supply pre-turned special dimensions for cylinder or flange liners manufactured by continuous or centrifugal casting to achieve the optimum finished mass for your application Special dimensions for casting alloys in the shape of bushes or rings can be produced economically using the centrifugal casting process. The parts are then pre-turned to the desired delivery dimensions. We supply flat or square cuts in special formats. We cut these to your desired format at the factory from continuous cast ingots measuring 250 x 510 x 3000 mm in the alloys Looser Bronze 50, Looser Bronze 65, Looser Bronze 68, Looser Bronze 66, Looser Lead Bronze 80, Looser Lead Bronze 82 and Looser Aluminum Bronze 75-1. We are also happy to offer ready-to-install parts directly according to your drawing. In Looser aluminum bronze 75, we offer you rolled and ultrasonically tested sheets or blanks in thicknesses from 4 to 145 mm. Sheets or blanks in thicknesses from 0.2 to 40 mm are also available in Looser phosphor bronze CuSn6.
We offer forged and ultrasonically tested round bars from stock in Looser aluminum bronze 75 from diameter 112 to 403. The physical and mechanical properties can be verified with a factory certificate EN 10204-3.1. With official approval for restamping from the Swiss Safety Center AG, we are also permitted to transfer batch numbers to blanks
We also supply forged bushes or rods, particularly in the alloys Looser aluminum bronze 75, Looser aluminum bronze 78 and in the electrode material CuCrZr. Mechanical properties can be agreed and documented with a works certificate EN 10204-3.1 on request.
Pre-turned cans
Centrifugal casting
Special formats edge profiles
Sheet metal blanks
Forged aluminum bronze
Forged special dimensions
Change of domicile of Walter Looser AG
Walter Looser AG relocated its registered office on November 17, 2025. We would like to inform you about the new address details:
| New company headquarters: Walter Looser AG Althardstrasse 83 CH-8105 Regensdorf |
Delivery address for forwarders: Walter Looser AG Althardstrasse 83 Hall 5 CH-8105 Regensdorf |
Our telephone numbers, e-mail addresses and all other contact details remain unchanged.
We kindly ask you to update the new data in your systems.
Our new online store is live!
We are delighted to present our new Walter Looser online shop nnennennen!
From now on, you can order our diverse range of high-quality products conveniently online around the clock.
What can you expect?
- User-friendly interface for quick and easy ordering
- Real-time availability – always up-to-date with stock levels and delivery times
Reinforcement by Brütsch/Rüegger Metals AG
On July 1, 2023, Brütsch/Rüegger Metals acquires 100% of the shares in Walter Looser AG, a leading supplier of bronze materials in Switzerland. This strategic acquisition not only secures the future of Walter Looser, but also opens up new and exciting opportunities for Brütsch/Rüegger Metals. Both companies, which have already enjoyed a long and successful partnership, see this merger as an opportunity to strengthen their market position through an expanded product range. Customers in particular will benefit from this development.
Image film of Brütsch/Rüegger Metals 2025
97
Number of years of experience
18
Number of available alloys
2100
Number of articles Semi-finished products
1255
Number of articles Finished parts