Generally to say, We do not have whole set of SPZ-B machines in stock, we have stock of only SPZ generator, whereas the capacitor and MF transformer will be designed and manufactured as per the work pieces and heating requirement of customers.

We need below information from customer for consultation and purchase:

(1)Material and dimension of the work piece to be heated,

(2)Heating application and speed, heating time required; total piece heating or only surface heating ? If surface heating, how much thickness? Etc.

(3)Any restriction on the shape and size of the coil? If it is heating from inside or outside? If the coil is enclosed or C-shaped? Is there any metal material easily induction heated within100 mmfrom the coil?

(4)Any requirement for the frequency?

(5)Heating environment: in open air or vacuum? Is there any protection gas?

(6)Any other detail in relation to the machine design?

Generally, SHUANGPING supply split type machines as shown below:

Configuration：Generator + （transformer + capacitor） + coil      

As the picture shows above, main is the MF generator, output unit is transformer and capacitor.  Coil can be connected directly to the output unit, and can also be connected thought water cooled cable as shown in the below picture. 

      When using water cooled cable to connect the coil, current through the cable is same as the current of the coil, this will cause great energy consumption on the cable. On the other hand, inductance of water cooled cable will also influence the frequency and matching of the whole machine set.  Anyway, it will be better to connect the coil without water cooled cable, if must use, the shorter the better.

      SPZ-B series machines feature big output unit size. But these machines are low cost, easy to match the load, with adjustable capacitor, and are the most widely used structure and configuration type used by SHUANGPING.

Small capacitor can be used to get smaller output unit, but the cost of the machine will increase at the same time. Picture below is SPZ-70B-II machine in which small capacitors are used. It is obvious to see that the output unit is much smaller now.

Please click the link:   http://www.shuangping.com/pro_clist_bid_93.html to get more information about the advantages, features, applications, working theory, category and model definition and other details for ordering. 

   Very Important:  Frequency of SPZ generator is 1—20KHZ, a very wide range. But the frequency range of the whole set machine is much smaller which is related to the transformer design and capacitors used.  Otherwise, the cost of the whole machine will be much higher with a very huge output unit.

We’ll design the transformer, capacitor and coil according to the application, part and requirements of the customer to not only realize the frequency desire but also get good matching and full power out.  The machine can work very well with the matching status designed, if new coil and new workpiece is applied, problem may arouse, so please contact us to get technical support then to avoid destroying the machine.  Generally to say, if the replaced coil is bigger inductance, it will lower the output frequency, there is possibility to have problem in transformer, lower frequency may cause the magnetic core saturated to cause over current failure or other problem.  On the contrary, if the replaced coil is smaller inductance, it will increase the output frequency to have danger to destroy the capacitor.

Generally, the lower the frequency, the higher the machine cost,  the heavier the output unit will be.   In SHUANGPING design, frequency is usually 8—20KHZ or 5—20KHZ.  When specially ordered, 2.5KHZ can also be available.

Model	Maximum Input power	Output frequency	Input voltage	Other desires
SPZ-15B	15KW	8-20KHZ or 5-20KHZ or 2.5-20KHZ When ordering, frequency range must be confirmed	3*380V 50or 60HZ 3*415V 3*440V 3*480V 3*220V Can be ordered	1、Timer function. Mark “A” in the model，for example: SPZ-45AB 2、One cabinet machine; 3、Using small capacitor, Mark –II in the model, for example SPZ-45B-II 4、Other special desires.
SPZ-25B	25KW
SPZ-35B	35KW
SPZ-45B	45KW
SPZ-70B	70KW
SPZ-90B	90KW
SPZ-110B	110KW
SPZ-160B	160KW
SPZ-200B	200KW
SPZ-240B	240KW
SPZ-300B	300KW