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12780 San Fernando Road, Sylmar, California 91342 | www.semcopackaging.com | Email: semcoinfo@PPG.com
10. Calibration Procedure
The Semco 1088 CE non-twist mixer is calibrated to function at the optimal rate to completely mix all sizes of
Semkit packages. The mixer’s main functions should be checked on an annual basis to ensure consistent
operation. These functions are listed below. They include a visual inspection of mixed sealant, generally
verifying the mixer is working appropriately, and mixing the materials according to the work instructions.
Detailed procedures to the following checks are in Mixer setting adjustment (Section 11). Factory calibration is
performed at 100psi.
1. Spindle rpm - the spindle rotations with no cartridge installed: 135 +/- 10rpm.
2. Catalyst injection rod – steady upward movement when activated: 5 +/- 2 second travel time until fully
extended, then return to retracted position afterwards. Check with no kit installed on any “-8” setting.
3. Stroke cycles – up/down cycles per minute: 20 +/- 2 cycles/min. on the 6 oz.-8” selector switch setting.
Use 6 oz.-8” Semkit fully water filled cartridge (plunger within 1” from the flange)
4. Visual cartridge checks – Homogeneity & end wiping of cartridge.
a. The mixed sealant should be the homogeneous with no distinctive striations.
b. The dome and plunger surfaces should be generally wiped and little unmixed base material.
(Minor unmixed material on edges or flat area of plunger OK.)
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