S70 S Type Excavator Coupler: 678-7639 S Type Couplers

Name: S70 S Type Excavator Coupler: 678-7639
Brand: Caterpillar

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Key Specs

Weight: 657 lb; 298 kg

Lifting Hook Capacity: 8 ton (US); 8 ton (US)

Width: 17.6 in; 448 mm

S70 S Type Excavator Coupler: 678-7639
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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.

Features At A Glance

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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.
Attachments can be shared between machines in the same size class.
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
- Hydraulic lock – check valve prevents hydraulic backflow
- Sensor – measures the position of the locking wedge and indicates coupling status to the operator
- Mechanical Spring – keeps the locking wedge in locking position, even in the event of hydraulic pressure loss
Locking visual on coupler and machine monitor gives operator assurance the attachment is connected
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.
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.

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.

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

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
- Hydraulic lock – check valve prevents hydraulic backflow
- Sensor – measures the position of the locking wedge and indicates coupling status to the operator
- Mechanical Spring – keeps the locking wedge in locking position, even in the event of hydraulic pressure loss
Locking visual on coupler and machine monitor gives operator assurance the attachment is connected
Operators can switch attachments independently while staying safe in the cab

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.
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.

Product Specifications for S70 S Type Excavator Coupler: 678-7639

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 16-30 tons
Maximum Operating Pressure	5076 psi 350 bar

Product Specifications for S70 S Type Excavator Coupler: 678-7639

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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 16-30 tons
Maximum Operating Pressure	5076 psi 350 bar