Cedarapids 4248 Jaw Crusher: Specs, Features, and Applications

The Cedarapids 4248 is a large-format primary jaw crusher built for high-capacity quarry and mining operations.
Capable of processing several hundred to over 1,000 short tons per hour, it is designed for continuous, heavy-duty use as either a stationary installation or a component in a portable primary crushing plant.

The “4248” designation refers to the machine’s 42-inch by 48-inch jaw opening — a standard industry shorthand that immediately signals its place in the heavy primary crusher class.

What Is the Cedarapids 4248?

The Cedarapids 4248 is a single-toggle primary jaw crusher manufactured by Terex/Cedarapids. In parts and service documentation it is often referred to as the JC 4248, reflecting its position within the Cedarapids “World Jaw” line of primary crushers.

In most primary crushing circuits, the 4248 is paired with a vibrating grizzly feeder and installed beneath a high-capacity hopper to accept large blasted rock delivered by front-end loader or haul truck.

This turnkey primary package arrangement allows the machine to handle oversized feed before material passes to secondary crushing stages.

Jaw Dimensions and Throughput Capacity

The 4248’s nominal jaw opening of 42 inches (gape) × 48 inches (width) allows it to accept feed material up to approximately 30–36 inches, depending on closed-side setting and blasting practice.

Throughput capacity for a 42×48 primary jaw typically ranges from around 386 to 1,309 short tons per hour, with the exact figure depending on:

• Closed-side setting
• Feed material density and hardness
• Whether a hydraulic or manual toggle system is used

This capacity range firmly places the 4248 in the high-capacity primary crusher class, suitable for large-scale aggregate, mining, and construction operations.

Power and Drive System

The Cedarapids 4248 is typically powered by an electric motor in the 200–300 horsepower range, with 250 hp being the most commonly referenced drive size for this class of machine.

Key drive system features include:

• Large-diameter split-hub flywheels that store rotational energy, smoothing power draw and maintaining crushing momentum under variable feed conditions
• Standard V-belt drive arrangements, giving plant designers flexibility to match motor speed and torque to site power requirements
• Drop-forged, heat-treated 4340 steel eccentric shaft for high shock load resistance in continuous primary duty
• Heavy cast steel pitman engineered for long service life

Design and Adjustment Features

The 4248 uses a steep toggle angle and aggressive crushing motion to deliver efficient size reduction at tight closed-side settings. This geometry improves nip angle and crushing stroke in the lower chamber, maximising throughput and reduction ratio while keeping the machine’s footprint relatively compact for its capacity class.

Closed-side setting adjustment and overload protection are handled through:

• Hydraulic-assisted shim systems or optional hydraulic toggle systems for fast, safe setting changes
• Overload protection that allows uncrushable tramp material to pass without damaging the machine
• Quick-change jaw die systems with wedge retention and replaceable toe plates to minimise liner change downtime

Construction and Wear Parts

The 4248 is built around a high-strength, stress-relieved base frame and precision cast steel frame, designed to resist deformation under sustained heavy loading. Wear part highlights include:

• Large, deeply ribbed jaw dies and full-height wrap-around stationary jaw dies for improved rock grip and extended wear life in hard and abrasive applications
• Grease-lubricated pitman supported by large, heavy-duty bearings sized for continuous operation
• Tension rod system engineered for durability and straightforward field service
• Integral lift provisions cast into jaw dies for safer, faster liner handling during change-outs

Typical Applications

The Cedarapids 4248 is designed for the first stage of crushing in quarrying and mining circuits, processing hard rock, ores, and demolition concrete. Common deployment scenarios include:

• Stationary primary crushing plants in aggregate quarries and hard rock mines
• Portable or track-mounted primary plants requiring high throughput and large feed acceptance
• Upstream primary stage feeding secondary cone crushers or impact crushers to produce material for further reduction

End markets served include road base production, concrete aggregate, crushed stone, and other heavy construction and mining applications.

Specifications at a Glance

Exact specifications vary by configuration, generation, and closed-side setting. Consult the manufacturer or an
authorised dealer for project-specific data.