Cummins Female Connector 3171818 For QSK60

Material system: Duplex stainless steel (SAF 2507) matrix + carbon fiber reinforced PTFE sealing layer, both 1580MPa tensile strength and -50℃ low temperature toughness.

Fluid optimization: 7 ° taper guiding design reduces oil turbulence by 42%, avoiding vortex loss of traditional right-angle interface.

System adaption: Precise matching with 42MPa common rail system of QSK60 engine, and compatible with Carter's 42MPa common rail system. High-pressure common rail system, and at the same time compatible with Caterpillar 3516E and other levels of power platform

First, five-axis linkage integral cutting

DMG MORI turning and milling composite centre in Germany, a molding of the inner cavity complex flow path (tolerance ± 0.01mm)

Metal flow integrity of up to 98.7%, compared with the fatigue life of the welded structure of the split body to increase by 400%

Second, the low-temperature Ion plating sealing surface reinforcement

2μm thick diamond-like carbon film (DLC) deposited at low temperature of 120℃, the coefficient of friction is reduced to 0.08

After 3000 times of insertion and removal test by ISO 11439, the sealing surface still maintains the Ra ≤ 0.4μm finish

Built-in memory alloy washer automatically compensates for the thermal expansion gap of 0.15mm under high temperature working condition of 150℃. The bolt group adopts asymmetric torque sequence (30N-m→60N-m→90N-m), and the uniformity of stress distribution is improved by 65%

Process verification: In the low air pressure test at simulated altitude of 4,500m, the seal leakage rate is stable at 0.05mL/min (the national standard permissible value of 1mL/min)

1. 3-colour visual pre-tensioning system

2. Patented design for tool-less quick-release

3. Intelligent health monitoring