intro

Quality Assurance
and Development

paper

Company

Uncompromised quality with efficient and flexible production.

Reliable partner for OEM manufacturers for production and development of state-of-the-art piston rings.

company

Products

Piston rings for 4 stroke large bore gas and diesel engines

With production ranging from 160 to 600 mm cylinder bore, piston rings are designed to run with all fuels under the most stringent environmental conditions. Lubrication, firing temperature, mean and peak pressure are taken into consideration to reduce scuffing, liner wear and increase operation stability.

Anti Polishing Rings, Flame Rings and Repair Bushes can be produced according to the dimensions required.

piston rings

Piston Rings

apr's

Flame, anti-polishing and repair rings

products

Materials

Base materials and coatings cover all four stroke applications for modern gas and diesel engines.
Extensive quality procedures and quality assurance guarantee smooth and reliable operation in every condition as testified by millions of total running hours on the field

Base
materials

QIN6PE
QIN6PE
QIN9S
QIN9S
QIN27
QIN27

Coatings

Chrome ceramic coating
QIN53

Chrome ceramic coating

Hard chrome coating
[Mo, Cu, Sn, Ni, Ni-Cr-Mo]
Plasma and metallic
sprayed coating

[Mo, Cu, Sn, Ni, Ni-Cr-Mo]

For heavily loaded rings
Three side coating

For heavily loaded rings

materials

Process &
Technology

QIN has developed a NEW PRODUCTION CYCLE

that allows minimal and constant MACHINING TOLERANCES and has enabled TOTAL PRODUCT TRACEBILITY.

process

Application
Fields

With more than 50 years of experience and a fresh outlook, at QIN we understand the needs of our customers and end-users.

We design and manufacture our products based on their current and future expectations.

application fields