Quality control of Zhouxiang Company consists of Incoming Quality
Control, In Process Quality Control, Pre-inspection Quality
Control, Final Quality Control and Customer Quality Control.
1. IQC (Income quality control)
The purchase department is responsible for outsourcing material
incoming quality control. We are the machine manufacturer and need
to purchase the small thing like screw, bolt, electrical
components, CNC system; large raw material like metal plate,
round pipe, square pipe, etc. We even need to purchase large
machines for processing. So our purchasing department needs to
choose the right supplier with good quality. We will choose 3 or 4
suppliers, and the quality is the most important thing when we need
to evaluate. And then the price, warranty period,
after-sale service, payment terms will be evaluated and compared.
Through the comprehensive comparison of above factors,
the supplier will be chosen and they are the qualified supplier who can meet Zhouxiang Standard. After
confirming the supplier, the formal purchasing contract will be
signed. For the outsourcing goods arrives our factory, we will
arrange the inspection personnel for quality control. For
semi-finished goods, we will inspect if there's appearance
defects or damaged during transportation; the size of key
components will be measured and checked; also check the nameplate
according to the purchasing applied model. For raw material, we
will check if there's rust on the surface, measure the thickness,
classify the inspection report according to the composition of the material. Then, the purchasing department
will ratify these suppliers and confirm the purchasing standard,
and record it into purchasing system and establish the supplier
2. IPQC (In Process Quality Control)
During the process of material in put to finished products package,
we have specialized technical personnel for tracing and control to
ensure that the products are in qualified and valid
range. From materials to finished products, the producing
process is particularly important. Zhouxiang Company controls
the producing process by following factors:
a. metalworking shop which carries out the tracing inspection for
machining process, size and precision requirement.
b.Cold work shop: they will carry out tracing inspection of
welding piece and roughcast for cold work and machining
c. Assembly shop: they will carry out the tracing inspection
for cleaning of components, remove the burr on edges, assembly
precision and lubricating.
d. Painting shop: the painting surface should be flat with clear
corner line, the appearance of painting should be clean without
obvious granular object and adhesive. Also no sandpaper
mark, hanging paint, blister defects is allowed. The painting color
should be consistent and bright. The red paint inside of the main
body should be painted evenly, and it should be boundaries
clear with blue paint.
3. PQC (Pre Quality Control)
Before the final product is done, the quality department needs
carry out a simple pre acceptance inspection, mainly to check
whether the gas pressure is consistent with the hydraulic system,
if there's oil leakage, and check if parts and components
are installed in place.
4. FQC (Final quality control)
FQC is mainly responsible for the quality of the finished products.
The inspection personnel should check if the connecting oil pipe
and gas pipe joint are correct, if the screw thread is
correct, the place of activity components is flexible,
walking frame is stable, electrical and the action is
consistent, the limit switch is not effective, the appearance
is clean, paint is good or not.
5. CQC(Customer Quality Control)
During the customer inspection, they will check the appearance of
the whole machine to see if there's defects on the painting
surface, if the screw if tight, if the machine motion is flexible.
And customer can also request the machine test running according to
actual situation to check the machine using condition.
Customer story for quality
We have one customer from MiddleEast area, and he planned to buy
from us about H beam welding machine in the year 2006.
After his investigation of several manufactures in this field , our
company get his approval in the first step. This customer is very
strict on the quality for the products, but at that time they only
had small budget. In the effort of our sales and technician person
, finally we got this order.
And after that , out of trust they ask our company to purchase
crusher machine for them,. After inspection we help him locked up
3-5 good suppliers in this filed , and customer visited and checked
these supplies together with us one by one. Because customer always
said “ high quality”, from the point of to be serious and
responsible to customer, we recommend customer one company which is
very excellent in the quality and experienced in this field ,
however this company price is beyond customer’s budget. And
ultimately they chose a relatively inexpensive plant.
But after the machine arrive the customer company , customer think
the machine quality is much difference with their expected which is
seriously affected their quality of their products and efficiency.
Their dissatisfaction with the supplier in the late rose to
dissatisfaction of Chinese manufacturing. In fact that we had
initially suggested that he choose better quality, but the client
taking into account the budget did not take our advice.
After several years we had little contact with customer,anytime we
contact with this customer he said he was upset, regret not listen
to our advice. In 2010, the customers contacted us, asked us to
help him purchase some other machines. When we help him find a good
supplier, he refused to cooperate again because of expensive factor
with this plant, in turn purchase from a small factory with lower
price. But then, during inspection , the machine has the problem of
over delivery time and not qualified in the quality and other
issues. In this case, the customer realized that Zhouxiang company
has been always focusing on the quality, from the beginning to the
present we have always recommended to him a high-quality product.
And in 2006 they purchased from our equipment, till now they are
still running well, quality is also very reliable. He said he
regretted not learned the lessons of the last, only value low
prices, now caused a lot of unnecessary trouble. With our help, he
solved the dispute between the small companies. And then the
customers need to purchase a new H-beam equipment, he also
consulted for these machines and compare a lot of other suppliers,
he finally felt that Zhouxiang company is the most reliable one so
they decided to cooperate with us. Customers also said that in the
future they will only believe on us and ask our company to help him
if he has other project in China. Based on the trust in our
products, he also plans to market research, and work as our agent
which to bring high-quality products to more regions and countries.