You have now entered one of the most important manufacturing
This is our CNC machine shop and there are （41）3 axis & 4 axis
machine tools. Most of these CNC machines are from Japan, Germany
CNC deep drilling machine: Tengxuan is doing deep drilling with 3
axis precision control. There will not be burrs remaining inside
the deep hole under 2,000 - 3,000 rpm drilling speed. And its
roughness can reach Ra 1.6 - 2.0
This is the preparation area where components are (waiting) to be
assembled into complete units. Both purchased & manufactured
parts are staged in this area.
Small Rotary Joint Assembly
This is a typical assembly work bench where small 1/4”to 2”Rotary
Joints are built.From here, these finished products are sent to
testing where each and every one is rotated and pressure tested.
This procedure is written into Tengxuan’s ISO 9001 and ISO 14001
Tengxuan uses a special process to clean all machined component
parts called ultrasonic cleaning. Tengxuan is the only Rotary Joint
Company that uses this process. This process consists of（3）steps,
which are cleaning, bleaching & drying. This process eliminates
the possibility of assembling a Rotary Joint with contaminant
Large Joint assembly area
On this side of the assembly area, we build large Rotary Joints in
sizes 2.5 inch through 6 inch.
Due to the extreme weight of these large Rotary Joints, a hoist
& conveyor system is required to move the products from
assembly to testing to painting & drying.
Grinding & Lapping
In this room, another critical operation is performed. This is
where all carbon graphite spherical seals go through the grinding
process. Like so many of the manufacturing processes at Tengxuan
none of our competitors do this.
Carbon & Testing
One of the most important area is where Tengxuan pressure tests all
carbon seals prior to being sent to assembly. The testing
parameters are established at 3.5bar.
3 axis CNC Water Jet Cleaning
This imported 3 axis CNC water jet cleaning machine can even clean
burrs and debris inside deep holes in any direction. Even the hard
steel burrs will not be remained inside deep hole under 300 - 500
bar hydraulic liquid pressure.
Tengxuan Inventories over 5000 various component parts. Included in
this vast inventory are both manufactured & purchased parts.
To better manage this inventory; in early 2011 Tengxuan implemented
a new ERP software system to manage all departmental function to
include inventory, finance, purchasing, order entry, engineering
Tengxuan also pays more attention to development. As the process of
globalization speeds up, Tengxuan is also trying to become an
international company with its expertise and specialization in the
field of rotary joints and related products.
One of the important step is to invest and set up an advanced
rotary joint testing center for various industries and
applications, and co-operate with national institutes to formulate
national standard for rotary joint. Second step is to establish an
experimental platform for a large-scale R&D center.
What testing equipments are in Tengxuan laboratory?
1.German Winzel 3 axis precision testing equipment linked with
computer which recorded all the machining history during
2.Hot oil application rotary joint testing equipment;
3.Water application rotary joint testing equipment;
4.Hot oil calender roll application testing platform;
5.High pressure (up to 400 - 450 bar) hydraulic rotary joint /
swivel joint testing platform;
6.High speed (up to 40,000 rpm), high pressure (up to 250 bar)
precision rotary joint testing platform;
7.Maximator pressure loss testing: The pressure drop within a time
interval would be shown on the screen. And we can do 4 positions
testing at the same time. It greatly improves efficiency.
8.Corrosion testing: We usually do testing for material’s
anti-corrosion effect for various different application.