European style single beam overhead crane end carriage applies to
16ton span 22.5m
1. Super strong structural bearing capacity:
Heavy-duty box-type structure: The end beam body is welded into a
solid box-type structure with thicker high-strength steel plates
(such as S355JR or higher grades), and the internal reinforced rib
layout usually ensures extremely high bending, torsion and
compressive strength under 16-ton rated load and dynamic load and
eccentric load conditions.
Optimized stress distribution: The design has undergone precise
finite element analysis, and key parts (such as the connection with
the main beam, the drive unit mounting seat, and the wheel axle
seat) are specially strengthened to avoid stress concentration.
2. High-performance "three-in-one" drive unit:
More power and torque: The power of the drive motor is
significantly increased (multi-stage motors or higher efficiency
designs may be used) to meet the needs of frequent starting,
stopping and acceleration under 16-ton loads. The reducer
specifications are greatly improved, using larger size and higher
load-bearing capacity hardened helical gear or planetary gear
reducers
Dual brake protection (usually standard): This is a key safety
requirement for the 16-ton level! In addition to the main working
disc brake integrated in the reduction gearbox, an auxiliary safety
brake (usually electromagnetic disc or fail-safe type) is usually
added to the tail of the motor or the high-speed shaft. Dual brakes
provide redundant protection. Even if one fails, the other can stop
safely, meeting higher safety levels (such as SIL2).
High reliability design: The "three-in-one" unit has better sealing
and adapts to harsh industrial environments. Key components such as
bearings and gears are designed and manufactured for heavy loads
and long life.
3. Multi-wheel heavy-duty wheel set (dispersing huge wheel
pressure):
Increased number of wheels: No longer single or double wheels! In
order to effectively disperse the huge wheel pressure (vertical
load) to the track and prevent the track from deforming or
crushing, the 16-ton European end beam generally adopts a
four-wheel or even eight-wheel design (that is, each side of the
end beam has 2 or 4 wheels).
Wheel material and process upgrade: The wheels are made of
higher-grade alloy forged steel (such as 34CrNiMo6, 42CrMo4), and
are deep quenched + tempered. The surface hardness is extremely
high (HRC 55-60), and it has excellent wear resistance, fatigue
resistance and impact resistance.
Heavy-duty bearing unit: Use large-size, high-load-carrying
capacity tapered roller bearings or spherical roller bearings (no
longer mainly deep groove ball bearings), with precise preload
adjustment, lifetime lubrication and sealing, and withstand huge
radial and axial loads.
Balance beam structure (multi-wheel): In four-wheel or eight-wheel
designs, a balance beam structure is often used to connect the
wheels. The balance beam can automatically adjust the load
distribution of each wheel to ensure that all wheels can
effectively contact the track even if the track is slightly uneven,
avoiding individual wheels from being suspended or overloaded.
4. Strengthen the horizontal guide and anti-skew system:
Heavy-duty horizontal guide wheels (horizontal wheels): The number
and size are increased, and high-strength materials (bearing steel
or alloy steel) and heavy-duty bearings are used. The guiding force
design is larger to ensure strong resistance to deflection and rail
gnawing when starting, braking or subjected to lateral forces under
a load of 16 tons.
Anti-deflection design: The overall rigidity of the end beam is
strong, and the synchronous control of the drive unit (especially
when frequency conversion control) is highly accurate, combined
with a powerful horizontal wheel, to jointly suppress the
"twisting" phenomenon during crane operation.
