FAQ

WHAT IS THE DELIVERY SCHEDULE FOR PRODUCTS IMPORTED FROM GERMANY?

QHM has a reasonable stock in China. Bigger orders might take up to 3-4 weeks to be imported from Germany.

CAN QMH OFFER TECHNICAL SUPPORT?

Technical support generally comes from Germany as well as the innovation. of the products. But QMH also offers technical assistance and service for their clients in China.

IS THERE A QMH PRODUCT WARRANTY?

The warranty on QMH‘s german products is 12 month by german law.

DOES DIRT STICK TO THE FILTER CLOTH (DUSTSCRAPE) AND EFFECT THE WHITE COLOUR?

Dusk is collected in a filter system which is dispatching the dirt from time to time (based on the weight of the collected dirt). This system is ensuring the effectiveness and functionality of operations. Furthermore the filter cloth can also be provided in black colour.

HOW IS THE IMPROVEMENT ON REDUCING THE DUST IN THE AIR?

There is no guarantee QMH can give, however based on the experience and analysis the dusk emission has been reduced by at least 80%.

IS THE ALIGNMENT OF THE CONVEYOR BELT IMPORTANT WHEN USING AIRSCRAPE®?

It is important to have a clear and efficient material flow. Material should be fed in the middle of the belt. If this is not the case, adjustments should be considered while or before installing Airscrape®.

ARE THERE ANY PRIORITISED INDUSTRIES FOR THE USAGE OF AIRSCRAPE®?

As long as question 3 is considered, Airscrape® functions in every industry. Good working results were proofed in cement, fertilizer, and coal applications.

WHAT KIND OF MATERIAL SHOULD NOT BE USED WITH AIRSCRAPE®?

Any material which turns sticky or which will become hard in a chemical reaction, could block the air effect and therefore limit the performance of Airscrape®.

HOW MUCH ARE THE MAINTENANCE COSTS OF AIRSCRAPE®?

If the product is installed correctly, there is no adjustment or maintenance necessary. All products being installed six years ago, are still running without any problems or maintenance so far.

ARE THERE ANY LIMITATIONS TO THE BELT WIDTH FOR USING AIRSCRAPE®?

Airscrape® works with all kind of belt widths.

IS THERE ANY NEGATIVE EFFECT THROUGH ENVIRONMENTAL INFLUENCE (I.E. WIND, SNOW, RAIN)?

Airscrape® is performing equally well under these environmental influences.

IS THERE ANY LIMITATION ON THE LUMP SIZE OF THE MATERIAL TRANSPORTED?

Any size of material works with Airscrape®.

WHAT IS THE RELATIONSHIP BETWEEN AIRSCRAPE® AND THE SPEED OF THE BELT?

There are successful references of Airscrape® being used with a belt speed ranging from 0.7m/s to 6m/s so far. Possibly it will also work with slower belt speed, but it will definitely work with a higher belt speed. Generally the Venturi Air Effect is better the higher the belt speed is. Important: The conveyor belt should not have an inclination of more than 20°