S70 S Type Excavator Coupler: 678-7639

S70 S Type Excavator Coupler: 678-7639

S70 - B/M320 Linkage Coupler

DESCRIPTION

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.

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.
    •     
  • 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.
    •     
  • Rugged, maintenance-free design with up to two years of battery life.

  • Specs
  • Docs

Specs

Overview

Long Name:
S70 S Type Excavator Coupler: 678-7639
Name:
S70 S Type Excavator Coupler: 678-7639
Brand:
Caterpillar
Status:
Current
Weight
657 lb / 298 kg
Lifting Hook Capacity
8 ton (US) / 8 ton (US)
Width
17.6 in / 448 mm
Overall Length
23.62 in / 600 mm
Machine Class
16-30 tons
Maximum Operating Pressure
5076 psi / 350 bar

SEE HOW S70 S Type Excavator Coupler: 566-2351 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.

S Type Couplers
S70 S Type Excavator Coupler: 566-2351
S70 - B/M320 Linkage Coupler
Brand
Caterpillar
Status
Current
Weight
657 lb / 298 kg
Lifting Hook Capacity
8 ton (US) / 8 ton (US)
Width
17.6 in / 448 mm
Overall Length
23.62 in / 600 mm
Machine Class
16-30 tons
Maximum Operating Pressure
5076 psi / 350 bar
Selected Model
S Type Couplers
S70 S Type Excavator Coupler: 566-2349
S70 - B/M320 Linkage Coupler
Brand
Caterpillar
Status
Current
Weight
606 lb / 275 kg
Lifting Hook Capacity
8 ton (US) / 8 ton (US)
Width
17.6 in / 448 mm
Overall Length
23.62 in / 600 mm
Machine Class
16-30 tons
Maximum Operating Pressure
5076 psi / 350 bar
More Details
S Type Couplers
S80 S Type Excavator Coupler: 573-3169
S80 - CB Linkage Coupler
Brand
Caterpillar
Status
Current
Weight
915 lb / 415 kg
Lifting Hook Capacity
10 ton (US) / 10 ton (US)
Width
23.1 in / 588 mm
Overall Length
26.38 in / 670 mm
Machine Class
25-40 tons
Maximum Operating Pressure
5076 psi / 350 bar
More Details