Introduction for Sino Stone
Produced by Admin
• Sino Stone Industrial Limited(Sino Stone) established at
15th Feb., 2016, focus on exporting shear connector,
ceramic ferrule, stud welding machine, etc.
Who we are
• Sino Stone’s share structure is simple, Alex Chao(85%) and
Jack Sun(15%), who is the owner of Tianjin DST Fastener
Co., Ltd in 1986. Alex Chao became a number of sale’s
department and started to do domestic and international
business in 2006.
Shareholder of Sino Stone
• Quality Control Inspections are based on ISO9001:2008 Standards, and are
implemented continually from raw materials to finished goods. We stand
behind everything we manufacture and guarantee the absolute highest
quality products to our customers.
• A strict Quality Assurance System is being followed in all our departments
and Total Quality Management is applied to streamline and all the
procedures and practices in operation to achieve high standard of efficiency.
Continuous efforts are being made for improvement of materials technology
and equipment to give best quality products at the most affordable prices.
Strict Quality Control
• With almost 30 years of manufacture and nearly 10
years of international sales experience on welding stud
products, Sino Stone’s clients are from over 50 countries,
such as Australia, Austria, Bangladesh, Belarus, Brazil,
Canada, Chile, Colombia, Croatia, Ecuador, German,
India, Indonesia, Iran, Korea, Latvia, Malaysia, Mexico,
Myanmar, New Zealand, Oman, Pakistan, Peru, Poland,
Qatar, Russia, Saudi Arabia, Singapore, South Africa, Sri
Lanka, Thailand, Turkey, United Arab Emirates, United
Kingdom, Ukraine, United States, Viet Nam, etc.
Clients are from over 50
countries and areas
Logo wall from parts of clients
Producing Line for Shear
Material C Si Mn P S Cr Al Ni Cu
Q235 0.12 0.18 0.44 0.024 0.015 - - - -
SWRCH15A 0.15 0.03 0.41 0.01 0.06 0.03 0.063 0.01 0.03
SWRCH18A 0.18 0.06 0.77 0.014 0.008 0.002 0.0082 0.01 0.05
Shear Connector’s raw material
• Sino Stone choose the famous Xingtai Steel factory to purchase the optimal
raw materials with good mechanical properties and weld performance,
which can ensure the shear connectors’ mechanical properties to match
client’s requirement.in different steel constructions.
Standard name Tensile
Yield point(Rm) Elongation(A5)
≥450Mpa ≥350Mpa ≥15%
≥450Mpa ≥350Mpa ≥15% in 5x dia.
≥20% in 2 in.
≥410Mpa ≥345Mpa ≥12%
JIS B 1198:2011 400~550Mpa ≥235Mpa ≥20% (in 2ch.)
BS5400-6 ≥495Mpa ≥385Mpa ≥15%
GB/T 10433:2002 ≥400Mpa ≥320Mpa ≥14%
Mechanical Properties between
Sino Stone's shear connector can be produced as per client’s requirement.
Drawing of Shear Connector
d1-0.4(a,e) 10 13 16 19 22 25
d5±0.3 19 25 32(d) 32 35 41
d3(c) 13 17 21 23 29 31
h3+1/-0.5 7 8 8 10 10 12
h4(c) 2.5 3 4.5 6 6 7
α±2.5° 22.5° 22.5° 22.5° 22.5° 22.5° 22.5°
l1±1.5 l2(b,c)+3 l2(b,c)+3 l2(b,c)+4 l2(b,c)+4.5 l2(b,c)+5 l2(b,c)+5.5
Size as per ISO13918:2008
a Excess diameter or production impressions in the shaft area below the head are
permitted up to 0.5mm, provided they do not affect proper plunge.
b Tolerance on l2 is +1/-2 mm.
c For special conditions, e.g. through-deck stud welding, the dimensions and the
tolerances are not applicable.
d May be reduced to 29mm for shear application.
e Use of the optional dimension depends on national regulations.
Dimension as per standard
• Sino Stone uses 3 die 3 blow cold forging machine to produce shear
connector with chamfer which depends on the mold of cold forging machine.
• It can’t produce the shear stud with chamfer when using one die two blow
cold forging machine, which is popular with most factory in Handan City of
Chamfer or not?
Note: You seldom find the shear connector with chamfer in the factory of
Handan City in Hebei province, this is one season for their low price.
• There are two ways to clean oil after the shear
stud by cold forging. Sino Stone uses new
cleaning oil machine(left photo), most factories
in Handan use the rotating cylinder which is full
of shear stud and wooden piece together.
Cleaning Oil Process
• Most factories in China install aluminum ball by
hand. However, Sino Stone uses automatic
riveting machine to install it.
Installing aluminum ball process
• Thear are two types packaging for shear connector:
– Barrel&Pallet: About 200kgs/barrel, 6barrels/pallet
– Carton&Pallet: About 25kgs/carton, 36cartons/pallet
Package of Shear Connector
• UF ceramic ferrule is designed for unthreaded stud and
shear connector, there are two types of UF type, one is
for normal welding with 20 teeth, another is for through
deck(it is also called thru-deck) welding with 8 teeth.
Package of Ceramic Ferrule
Application of Shear Connector