DELRIN SUNPOWER piston head with radial holes for UMAREX/VFC MP7 AEG gen1/gen2 (TPMP7D)
The SUNPOWER piston head is made with CNC machined DELRIN on specific measures by TopMax Elaborazioni. The DELRIN structure make this piston head reliable, durable and incredibly suitable for any type of configuration. The SUNPOWER piston head is made with axial-internal vacuum holes and radial output holes, with which provide better air distribution on the sealing O-RING, speeding up its dilatation during the compression phase. The SUNPOWER piston head size and position of the radial holes are designed to achieve great compression on the O-RING while maintaining stability, consistency and accuracy in the shots. [MORE DETAILS]
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The front shape of the SUNPOWER piston head has been designed to further reduce stresses due to the impact with the PAD of the cylinder head even at more higher R.O.Fs.. The SUNPOWER piston head does not have the double O-RING of sealing/stabilization, but has a small break-in that decreases the contact surface with the inside of the cylinder to minimize friction. The product is completed with the ERGAL and DELRIN insert for fixing the piston head on the piston.
The SUNPOWER piston head is designed to have a narrower compression chamber to have a faster compression phase on the O-RING, a faster opening time and ensuring that the cylinder’s air volume is fully compressed almost instantly.
The stress-tests on the SUNPOWER piston head were performed with a more powerful springs than those required by italian law, so the product will guarantee reliability and performance even with more advanced configurations. For maximum performance, we recommend pairing the piston head with the TopMax cylinder head.
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