Description
xAfter years of accumulation and polishing. the Stirling engine series has welcomed a new batch of members - M20 series models. This is a new batch of faces. the power cylinder of this series of models has a uniform diameter of 20MM. and the structure of each component is different.
In order to improve the service life of cylinder and piston. we choose bearing steel GCR15 as the raw material of cylinder liner and piston liner. and do quenching treatment after processing in CNC lathe to increase the hardness to 58-62HRCo. and then after grinding treatment. the precision can reach plus or minus 0.005MM or so. the piston in the cylinder to do the reciprocating motion at the same time as far as possible sealing of cylinder. which is a key part of the embodiment of the accuracy of Stirling. This is the key part of Stirling precision. This is also the key part of Stirling precision.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
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