Description

The SRSC45H9A Hybrid Reach Stacker delivers 15 percent overall machine cost saving, achieved by more container moves and less fuel per hour. Technically, this is realized by the energy recovery, weight reduction and improved transmission efficiency.

Energy recovery – hybrid system for the boom

• Hydro-pneumatic accumulators store energy from boom lowering
• Direct power flow to additional lift cylinders for boom lifting
• The hybrid system delivers up to 70kW additional power for boom lifting

Weight reduction of 3 respectively 4 t

• Approx. 1t weight saving by a new spreader design
• 500kg lighter boom head and adapted lifting cylinder
• Counterweight reduction

Efficient transmission

• DANA TE30 for smoother shifting
• 5 speeds allow more efficient engine rpms than a 4-speeds transmission
• Lock-up in Torque converter for automatic drag-elimination

Innovations

Hybrid system for the boom

• Energy recovery acts parallel to the main lift cylinders, which is uncomplicated, economical and efficient
• During boom lowering, hydraulic oil from the additional lifting cylinders compresses the gas in the hydro-pneumatic accumulators (4*32l capacity), which stores the energy of the boom and spreader
• While boom lifting, the accumulators act directly on the additional lifting cylinders with up to 70 kW
• None energy conversion losses by avoiding a usual hybrid-chain of hydraulic motor – electric motor – electric battery
• Slimmer main lift cylinders: faster lifting with less engine power and lower fuel consumption

Weight reduction

• Spreader is lighter: 700 kg than standard Sany Spreader or 2t than ELME 817.
• New design: uni-axial telescopic arms save material and reduce torsion.
• 500 kg saving in the boom head
• Slimmer main lift cylinders are 500 kg lighter. The additional lift cylinders are behind the vehicle’s centre of gravity to contribute as a counterweight
• Weight savings on spreader and boom-head pay out twice since the counterweight could shrink

Drive-train

• The specific efficiency of the TE30 gearbox is better than HR36000 and much better than the TE27 or TE32.
• 5 instead of 4 gears allow moderate steps in engine rpms at gearshifts. This means, the engine can remain more frequently in fuel-efficient rpms.
• The lock-up of the torque converter automatically clutches which avoids the 2-3 percent draw

Market relevance

Reach Stackers are becoming increasingly important for large, medium-sized and small logistics companies in the growing container handling sector. The machine costs per container-move are considerable. Fuel consumption and tyre wear are the largest variable costs of a Reach Stacker.

Causalities:

• Each time the boom and spreader are lowered, potential energy is lost in heat and needs to be cooled off.
• The heavier the spreader, the more energy is required per each lifting operation.
• Heavy spreaders require more counterweight. The heavier a reach stacker, the more fuel is needed for frequent forward and reverse travel and the more tyre wear occurs.

The SRSC45H9A reduces machine costs by 15% per container handled through the benefits of more container moves and lower diesel consumption.
More container handling by bundling the 3 technical measures of hybrid system, weight savings and more efficient drive train. Machine costs are spread over more containers.

• Direct diesel savings through hybrid system: 70kW from accumulators extra power without extra fuel.
  Fuel savings supported by more efficient transmission and optimized transmisison-engine matching: avoidance of very high engine rpms reduces the fuel-consumption at full engine power.
• Indirect diesel savings through weight savings – tyre wear is slightly minimised.
• New spreader design completed 30,000 hours on the test bench without signs of fatigue.

Customer benefits

The SANY SRSC45H9A Hybrid Reach Stacker moves more container per hour with lower fuel consumption and lower overall machine costs. In less than 2 years a customer reaches the break-even point for the investment of the SANY Hybrid Reach Stacker compared to a standard SANY Reach Stacker.

Benchmark-test of the Hybrid Reach Stackers against standard SANY Reach Stackers on test site:
19 – 21 percent diesel savings per container.

A) Stacking and short travel: 23 percent more containers, 4 percent less diesel per hour:
21 percent diesel savings per container
B) Stacking and long routes: 9.5 percent more containers, 11.5 percent less diesel per hour:
19 percent diesel savings per container

Customer application in Antwerp: diesel consumption of only 10.8 to 12.5 l/h

Further advantages:

Performance:

• 13 percent greater lifting speed at full load
• 5 instead of 4 container stacking-height in 2nd row
• 1t more lifting capacity if required in 2nd and 3rd row due to optional movable counterweight
• Narrow turning radius due to only 6000 mm wheelbase

Ergonomics:

• Large cabin, generous wide cabin access steps and platform on both sides
• Good all-round visibility, frameless windscreen and frameless transition to roof window for perfect visibility
• Head-up display
• Sliding cabin (on-the-go)
• Air conditioning, cup holder, document compartment

Durability and safety:

• Optional warranty extension up to 5 years / 10’000 hours
• Standard rear-view camera and distance sensors, 4 rear-view mirrors
• Redundant anti-tip protection by anti-tip-over rear axle