CAT 307

Used CAT 307 (Next Gen): 7-Ton Compact Excavator With Export-Grade Concerns

CAT 307 should be assessed as a 7-ton Next Generation compact excavator — a clear step above the older 306E2, but still a compact machine built for transport efficiency, tight tail swing and utility-class hydraulic power. Its real value for B2B buyers is the combination of deeper digging capacity, stronger lift performance and modern control features without jumping into a much heavier transport class. Caterpillar brand support and resale matter, but a used 307 only deserves its price premium when the undercarriage, hydraulic system and boom structure can be verified from a real inspection, not from a repainted photo.

The 307 is commonly compared with the CAT 306E2. The 306E2 is an older 6-ton class compact excavator: lighter, simpler, cheaper to buy and easier to move on a small trailer. But it offers less dig depth, less breakout force, lower lift capacity and older cab/control ergonomics. The 307 gives contractors more production for trenching, pipe laying and loading, while still being practical on residential and municipal sites. For buyers whose work is mostly light landscaping or narrow access, the 306E2 may be enough. When the job demands more depth, stability and daily output, the 307 is the better benchmark — which is why both machines are often compared.

Typical Jobs and Buying Fit

Used CAT 307 machines are commonly bought for municipal maintenance work, sewer and water repairs, residential excavation, drainage projects, site utilities, landscaping, small retaining walls, curb and gutter installation, and rental fleet applications. Many exporters offer this model with steel tracks and a general-purpose digging bucket. Some units also come with hydraulic thumb piping, a breaker circuit or an extra bucket.

Make sure the machine you are quoted matches the jobs where you really need capacity. The 307 works well for trenching, pipe laying and basement excavation to practical depths around 4.6 m, and for loading loose material into small dump trucks or skip loaders. It is not intended for heavy rock mass excavation or for continuous loading of a 20-ton dump truck. If your daily workload is lighter and transport cost is the main concern, the 306E2 would be a more economical choice — which is why both machines are often compared.

Inspection and Video Proof for the 307

Used compact excavators are frequently subject to hour-meter tampering, cosmetic repainting and worn-out travel motors. A “low-hour” 307 can still have a badly bent stick, cracked boom foot, or a swing bearing that gets noisy only under load.

Ask the seller for a full walkaround video with a clear close-up of the serial plate and hour display. Also request separate clips showing:

• Cold start and warm-up, with engine exhaust color
• Boom raise/lower, bucket curl and stick operation under load
• Travel forward and reverse straight on level ground
• Swing left and right while the machine is positioned on an inclined or uneven surface
• Undercarriage close-up showing track sag and adjustment
• Pin and bushing play at key attachment points

Only after these videos match your expectations should you move to a detailed estimate.

Quote Checklist Before Payment

• Confirm year, serial number, hour reading and photo of the hour meter/display.
• Specify whether you need standard boom, offset boom or long-reach configuration, if available.
• Check actual bucket model, width, teeth condition and quick-coupler style.
• Ask whether the machine is steel track or rubber track — many export 307 units use steel tracks.
• Verify the machine’s tail swing configuration and counterweight type.
• Request photos of wear items: idlers, track rollers, sprockets, bucket pins, bushings and boom pin.
• Record cold-start smoke and hydraulic cycle time on video.
• Compare FOB, inland trucking, container loading and ocean freight separately.
• Confirm whether a hydraulic breaker, thumb, spare bucket or additional attachments are included in the package.
• Hold final payment until loading photos and shipping documents match the proforma invoice.
• Have the seller verify the actual operating weight printed on the plate or shipping document.
• Photograph any oil leak, paint-over-rust, previous damage or welded repair.

Reference Specs for Quote Comparison

Use these fixed model references for comparison only. Confirm stock-specific year, hours, bucket set, cosmetic condition and service history from the actual available unit.

Estimated FOB Price and Next Step

Estimated FOB reference: US$30,000–38,000. This range is a B2B used-machine reference, not a checkout price. Final quotation depends on year, hours, undercarriage condition, attachment package, repainting request, current stock and destination port.

Liehuang can provide current photos, walkaround video, inspection notes and FOB or CIF shipping quotes for the actual available unit. Browse broader current stock in the Used Caterpillar Excavators category.