S70 S Type Excavator Coupler: 678-7639

US
Metric

Overview

Cat® S Couplers help you get the job done faster while keeping the safety of your people and equipment top of mind. With the ability to easily switch attachments, S Couplers bring enhanced versatility and the kind of quality you expect from your Cat products. S Couplers are a versatile solution that help your operation run at peak efficiency.
Weight
657.00 lb
298.00 kg
Lifting Hook Capacity
8.00 ton (US)
8.00 ton (US)
Width
17.60 in
448.00 mm
Overall Length
23.62 in
600.00 mm
Machine Class
16-30 tons
Maximum Operating Pressure
5076.00 psi
350.00 bar
Features

Unmatched Durability

  • The most important coupler components are protected inside the cast coupler housing, with ease of access when needed.
  • The coupler is constructed of cast pieces to ensure a durable and reliable design to meet the demands of your work.
  • Wide contact surface to connect attachments prevents excessive wear.
  • Low build height limits maintains consistent breakout force.
  • Heavy-duty locking wedge and hydraulic force keeps attachments tight and secure.

Enhanced Versatility

        
  • Switching attachments is quick and easy.
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  • Attachments can be shared between machines in the same size class.
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  • Lift hook allows for lifting objects with a chain or strap.

Industry-Leading Safety

        
  • SecureLock™ features and technology lead the industry in safety     
              
    • Pressure relief – limits system to 300 bar (4351 psi) to protect the cylinder or locking wedge from damage
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    • Hydraulic lock – check valve prevents hydraulic backflow
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    • Sensor – measures the position of the locking wedge and indicates coupling status to the operator
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    • Mechanical Spring – keeps the locking wedge in locking position, even in the event of hydraulic pressure loss
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  • Locking visual on coupler and machine monitor gives operator assurance the attachment is connected
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  • Operators can switch attachments independently while staying safe in the cab

Boost Efficiency and Productivity with Integrated Technologies

        
  • The Cat® PL161 attachment locator keeps track of attachments across every jobsite with Bluetooth enabled location visibility.
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  • Monitor attachment utilization by capturing real working hours for smarter maintenance planning.
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  • View machines and attachments together in VisionLink™ for full fleet visibility and management.
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  • Rugged, maintenance-free design with up to two years of battery life.