Problems we have actually solved
Real programmes, real constraints, measurable outcomes, from cryogenic de-flashing to HTV silicone conversions.
AutomotiveCryogenically de-flashed FKM O-rings for engine sealing
The original O-ring samples suffered from uneven de-flashing, thick parting lines, poor compression set and high filler content. Harkesh delivered an…
Process automationCustomised seals: HTV recommended over LSR
The client approached us for customised seals and specified Liquid Silicone Rubber (LSR). After studying the application, Harkesh proposed High-Temper…
HVACHigh-temperature FKM diaphragm for HVAC actuators
The client's existing FKM diaphragms turned brittle when exposed to high temperatures in HVAC service. Harkesh formulated a high-temperature-resistant…
Flow control2× diaphragm life-cycle for a German control-valve manufacturer
The client's incumbent supplier delivered slower than valves could be built, causing lost production. Harkesh developed a replacement diaphragm and te…
AerospaceEPDM diaphragm qualified for Boeing 787 & Airbus 320
The client had to supply actuator diaphragms compliant with Skydrol hydraulic fluid, surviving 200,000 cycles while immersed, with no guidance on whic…
Aerospace & DefenseNBR diaphragm requalified for a fighter-jet program
The client had a qualified diaphragm for the Joint Strike Fighter program but could no longer source it from their existing supplier. They needed a ne…
ThermostaticRapid prototyping: rubber plug & diaphragm in 12 days
After initial approval of a new rubber plug and diaphragm, the client wanted to improve the actuator's performance, which meant a challenging design c…
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