PRODUCTION CASE|FOOD INDUSTRY|GEARBOX · BEARINGS · 250 °C
INSPECTION REPORT ON THE OVEN MECHANISMS
Waffle oven E-30: mobility restored, shift greasing ended
PRODUCTXADO revitalizant gel
and XADO-300 greaseconveyor drive gearbox — three treatments · bearings, rollers, mould hinge
and XADO-300 greaseconveyor drive gearbox — three treatments · bearings, rollers, mould hinge
TEST OBJECTWaffle oven No. 4, E-30made in Germany · conveyor drive, 1.5 kW electric motor
DOCUMENT TYPEInspection report
with signatures and seals
with signatures and seals
Key results
↓100%
mould support rollers, up to 60 % without motion → all moving
↓16.7%
current draw of the conveyor drive, 3 → 2.5 A
↓39days
greasing of friction units, every shift → 39 days with no greasing
| EQUIPMENT AND UNITS | CONDITION BEFORE TREATMENT | WHAT WAS MEASURED |
|---|---|---|
| Conveyor drive gearbox, 1.5 kW electric motor | In operation, current 3 A; noise and vibration while running | Current draw by date, noise and vibration |
| Mould support rollers | Up to 60 % of the rollers had lost mobility | Share of moving rollers at inspection |
| Mould latch bearings, hinge | Greased with ordinary grease every shift | Ease of rotation, presence of binding |
Conveyor drive — current draw by date
| MEASUREMENT | DATE | MOTOR CURRENT |
|---|---|---|
| Before treatment | before 16.07.2002 | 3 A |
| After the first gearbox treatment | 18.07.2002 | 2.5 A |
| After 20 days of operation | 07.08.2002 | 2.5 A |
| Control inspection | 26.08.2002 | 2.5 A |
Measured on the conveyor drive motor rated 1.5 kW: the reduced current held for three measurements in a row, with no rollback.
Friction units of the oven — condition at the control inspection on 26.08.2002
| UNIT | BEFORE TREATMENT | INSPECTION 26.08.2002 |
|---|---|---|
| Mould support rollers | Up to 60 % of the rollers had lost mobility | 100 % of the rollers are moving |
| Mould latch bearings | Greased every shift | Rotate easily, without binding |
| Hinge | Greased every shift | Good mobility |
| Conveyor drive gearbox | Noise and vibration while running | Noise and vibration reduced considerably |
From 18.07 to 26.08.2002 the treated units were not greased; a metal-ceramic layer has formed on the surfaces of the friction parts.
Commission conclusion
The commission of KRISTAL AD — the chief mechanic, the shop mechanic and the technical director — recorded at the control inspection on 26.08.2002: the current draw of the conveyor drive fell from 3 to 2.5 A and has held for the third measurement in a row; the noise and vibration of the gearbox decreased considerably; all mould support rollers are moving, whereas before the treatment up to 60 % of them had lost motion; the hinge and the mould latch bearings rotate easily, without binding; a metal-ceramic layer has formed on the surfaces of the friction parts. All this after 39 days of operation at a temperature of about 250 °C and high humidity, during which the treated units were not greased at all, although previously they required greasing every shift. The report states: “We recommend using XADO revitalizants for all units of the waffle shop. Operating under high temperatures and elevated humidity.”
The results apply to the mechanisms of waffle oven No. 4, E-30, in the waffle shop of KRISTAL AD and to its operating conditions — temperature about 250 °C, high humidity; on other equipment and in other duty cycles the figures may differ. The original report with signatures and seals is published in full and available for download.
Current equivalent
- Revitalizant gel for gearboxesGearboxes · transmissions · gear drives
- Revitalizant gel for compressors and bearingsCompressors · bearings · spindles
- XADO “Restorative” greaseFriction pairs · joints
How such units are treated: