After-sales service

◆ The company’s sales engineers are responsible for offering customers professional advices on the market, equipment, technology, ingredients, packaging and other issues.
◆ On-site demonstration for the company’s facilities of different kinds is available on request;
◆ The company offers assistance in equipment selection, process design, and plant layout. On-site services are also available on request.
◆ The company is responsible for dealing with transporting the equipment, sending technical personnel for on-site installation, and offering training services.
◆ The equipment is covered under warranty service within one year from the date of purchase. Moreover, lifelong maintenance will be offered with charge. Also, spare parts will be offered at discount at any time.
◆ Production of similar equipment as required is available.  


Repair and Maintenance 
       
◆Check the fixing bolts at connection flanges, distribution boxes, gear boxes, or thrust boxes at regular intervals; if they are loose, fasten them.
◆Replace lubricating oil for reduction gears at intervals of every six months; clean distribution boxes and replace lubricating oil for new equipment after put into use for two months, and at intervals of every half year since after. After the oil is replaced, check the bearings in distribution boxes to see if there is any voice after turning on the equipment
◆ Check the oil pump to see if there is gas leakage or blockage.
◆Adjust it if any loose happens; replace it when it is worn or damaged.
◆Check the transmission vee belt monthly to ensure its tightness.
◆Check the rotary cut blade regularly; if it is worn, please replace it to avoid production of inferior products.
◆Examine the electrical wires once a week to ensure that all wire are tightly connected or covered with no dust; examine the insulation resistance (less than 0.5 Ω) and grounding resistance (less than 4 Ω) at intervals of half a year.
◆Check the wear of thrust bearings in the distribution box at the 20th date from the start of running; if the gap is excessively large, please replace it immediately.
◆ Examine the screw and barrel after the equipment is put into use for half a year; if they are excessively worn, please replace the screw sets at the front.
◆Apply oil onto the die head, screw, and other parts to prevent corrosion if the use of the equipment is suspended.


Failure analysis and ruled ou

No.

Problems

Description

Cause

Solutions

1

No Ingredient is discharged

No flour is taken out at the die head of the extruder during normal production or at the startup.

A、Add inadequate water at the startup

Add water to the level as required

B、Excessively large size of pellets for ingredients

Grind it as required

C、The main motor is reversely rotated

Change the phase sequence

D、Inconsistent temperature

Adjust the temperature as required

E、Residues remain in the barrel

Turn off the machine for cleaning before re-turning on

2

Abnormal discharging of ingredients

Excessively fast discharging (over-puffed)

A、Low content of water in ingredients

Add water

B、Excessively high temperature at Area II

Bring down the temperature at Area II

C、Malfunction of the temperature controller

Replace it

D、Excessively-worn screw

Replace the cutting blade

Product is not puffed

Excessively low temperature at Area II

Adjust it as required

3

Abnormal cutting

Products are not formed into required shards or involve rough edges

Some of the cutters have excessively large intervals or are excessively worn.

Re-adjust or replace it

4

Non-rotating of the motor spindle

Non-rotation due to cutting-off of power or after the production is completed

A、The barrel is full of ingredients

Burning of ingredients at high temperature

B、Mechanical damage at the transmission gear

Open and check the transmission gear

Please contact us when other problems take place.