Akduman Gasket Industry and Trade Ltd. Co.
Quality assurance
Each batch is measured, recorded, and a sample is retained. We will share the requested documents before shipment.
Our Approach to Quality
Our Emphasis on Quality in Production
We focus on material selection, dimensional suitability, and application requirements in gasket production. If needed, our existing quality certificates and technical product information will be shared.
Certification
- ISO 9001:2015Gasket and sealing element manufacturing, export, and contract manufacturing have been certified. It stipulates that processes must be documented, traceable, and repeatable.
- ISO 14001:2015Cutting waste, oil, and solvent management are included. It requires waste and energy consumption to be recorded.
- OHSAS 18001:2007It covers risk assessment and the implementation of preventive measures in the production area. It has been replaced by the ISO 45001 standard.
- ISO 10002:2014Regulates the recording and resolution of export customer return and complaint processes.
In-process control
- Thickness measurement
- 5 points per part · ±0.03 mm
- Leak test
- Pressure drop method · 6 bar
- Material hardness
- Shore A / D, per batch
- Dimensional control
- Optical comparator
- Traceability
- Register with lot number
- Sample archive
- Retained sample from each production batch
Material and technology
The right material, in the right place
A gasket can only fulfill its function if it is made from a material suitable for the temperature, pressure, and fluid it will be working with. Below are the four main material families in our program and their typical operating ranges.
MLS Multi-layered steel
Stainless spring steel functional bead geometry between layers. Elastomer coating fills micro-surface imperfections.
- Number of layers
- 2–5
- Cladding
- FKM / NBR, 15–25 µm
- Operating temperature
- −40 … +250 °C
- Thickness tolerance
- ±0.03 mm
Typical use Cylinder head, high compression
GRF Expanded graphite
Graphite reinforced with stainless steel wire mesh or perforated sheet. High creep resistance in thermal cycling.
- Graphite purity
- ≥ 98%
- Reinforcement
- Stainless steel sheet/wire
- Operating temperature
- −200 … +550 °C
- Compressibility
- 35–45%
Typical use Exhaust manifold, turbo flange
CMP Aramid fiber composite
Aramid fiber and NBR binder. Provides dimensional stability against oil and and cooling water.
- Binder
- NBR
- Density
- 1.55–1.85 g/cm³
- Operating temperature
- -40 … +200 °C
- Rebound
- ≥ 50%
Typical use Cover, flange, low pressure
ELS Elastomer profile
NBR, FKM, ACM, or VMQ. The compression set value is selected according to the cover material.
- Hardness
- 55–80 Shore A
- Permanent deformation
- ≤ 20% / 70 hrs
- Operating temperature
- −40 … +230 °C (FKM)
- Oil resistance
- IRM 903 compatible
Typical use Sump, cam cover, water pump
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