Knowledge Graph Spare Parts

Spare Parts Replacement
Operating Instructions

Step-by-step procedures for replacing the wearing parts of the XC8 / CP8M rotary PET blow moulding machine - heating heads, cooling water pipes, infrared lamps, blowing nozzles and the bottle discharge dial, with the conditions and parameters to check after every change.
Updated on September 22, 2026 7 min read
  • 5replacement jobs
  • 7diagrams
  • 3adjustment steps
  • 1post-change check
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Spare Parts Replacement — Operating Instructions

1. Change the Heating Head

Condition: the preform inner bore diameter changes.

Loosen the bolt S1 with an Allen key and prise off the preform unloading ring 4 with a flat screwdriver, then replace parts 1, 2, 3, 4 and 14.

Change the heating head
Figure 1 — Change the heating head

2. Adjust the Cooling Water Pipes

Condition: the preform mouth outer diameter (Φd1) changes.

  1. Adjust the outer light box water channel: turn screw B.
  2. Adjust the inner light box water channel: loosen the screw A connected to the water channel.
  3. Adjust the distance between the lamp and the preform: turn the screw at C.
Outer light box water channel adjustment
Figure 2 — Outer light box water channel
Inner light box water channel adjustment
Figure 3 — Inner light box water channel

3. Replace the Infrared Lamp

Lamp replacement steps:

Infrared lamp replacement step 1
Figure 4 — Lamp replacement, step 1
Infrared lamp replacement step 2
Figure 5 — Lamp replacement, step 2

Finally, put the light box back to its original position, tighten the handle and plug in the power plug.

4. Change the Blowing Nozzle

Blowing nozzle assembly
Figure 6 — Blowing nozzle and sealing head

Condition: the preform mouth outer diameter (Φd1) changes.

Loosen the screw (2) and take out the sealing head (1).

Change to a new blowing nozzle and adjust the height of the nozzle to meet the requirements.

Tighten the screw (2).

5. Change the Bottle Discharge Dial

(1) Replace the transition dial

Loosen the bolt (A), take down the dial (6) and take down the adjusting pole (5). Exchange for the dial that suits the bottle type, fit it on and tighten the bolt.

Bottle discharge dial and adjusting pole
Figure 7 — Discharge dial and adjusting pole

(2) Adjust the height of the bottle guard pole

Loosen the bolt (A) and take down the pole (5). According to the bottle height, exchange for the appropriate pole and tighten the bolt (A).

Note: please adjust the parameters after changing the parts (heating, blowing, etc.).

If you need technical support, please consult the engineers of King Machine.

Need to change a spare part on your line?

Tell us your machine model and the part you want to replace - our engineers will confirm the correct procedure, the settings to re-adjust and the spare parts you need.
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