3.5 Ton Excavator Product Features
1.885mm Tail Swing — Work in Confined Spaces
The defining feature of this 3.5-ton excavator is its 885mm tail swing radius — one of the tightest in its weight class. When the upper structure rotates, the rear of the machine swings within an extremely small arc, allowing the operator to dig alongside walls, curbs, foundations, and other obstacles without the risk of striking them.
This short tail swing is made possible by the compact 1554mm upper structure width and careful component packaging around the swing gear. For urban contractors, it means fewer site restrictions, safer operation near pedestrians and traffic, and the ability to work in alleys and courtyards where conventional machines would be rejected.
2.Kubota D1703 Engine & 30.4kN Digging Force
Under the canopy sits a Kubota D1703 three-cylinder direct-injection diesel, producing 18.5kW at 2200rpm. Kubota's reputation for durability and easy parts availability makes this engine a low-risk choice for international buyers — service intervals are standard, and the 5.1L oil capacity keeps routine maintenance simple.
The hydraulic system is built around a flow-sharing main valve (HVSE-09-09-P270-BE212) operating at 24MPa, with a swash-plate axial piston variable pump delivering 79.2 L/min of system flow. This combination produces 30.4kN of bucket digging force and 18.2kN of arm force — ample power for cutting through compacted soil, clay, and loose rock in its working envelope.
3.3106mm Digging Depth & 5175mm Digging Radius / 3106mm
With a maximum digging depth of 3106mm and a digging radius of 5175mm, the machine handles standard utility trenching and footing excavation without repositioning. The 3376mm unloading height is sufficient for loading into small dumpers and skid-steer loaders, while the 4938mm digging height clears standard site obstacles.
The dozer blade extends the machine's utility beyond digging: a 393mm blade lifting height and 461mm cutting depth allow fast site leveling, trench backfill, and ramp preparation — eliminating the need for a separate machine on small jobs.
3.5 Ton Excavator Product Video
3500kg Excavator Specifications
3.5 Ton Excavator Product Images
Where to Use a 3.5 Ton Excavator
Urban construction & renovation — 885mm tail swing allows work in alleys, courtyards, and between buildings
Utility installation — water, drainage, gas, and telecom trenching at 3106mm depth
Landscaping & garden projects — precise digging and leveling in confined residential spaces
Pool & foundation construction — footing excavation and site preparation
Small demolition — interior removal and rubble handling in tight spaces
Rental fleets — a versatile entry-level machine that covers narrow-site jobs other machines cannot access
About Hightop Group
Hightop is a professional manufacturer specialized in the R&D, production and export of compact construction machinery, offering a full product line including mini excavators, compact excavators, crawler excavators, excavator attachments, wheel loaders and loader attachments.
Covering operating weights from 0.8 to 7.5 tons, our machines can be powered by well-known engine options such as Kubota, Yanmar and ZN490 to meet the power and emission requirements of customers in different countries and regions.
All Hightop excavators feature high-specification hydraulic systems (some models equipped with flow-sharing main valves and swash-plate axial piston variable pumps), along with practical functions such as dozer blades, offset booms and 360° full swing. They are widely used in municipal works, foundation projects, agricultural irrigation, landscaping, road maintenance and rental fleets.
From structural frames to hydraulic hoses, every unit is manufactured and inspected under standardized procedures to ensure reliable performance on delivery.
Serving customers worldwide, Hightop offers OEM/ODM services — engine options, attachments (buckets, narrow buckets, rippers, etc.), cab or canopy configurations, paint colors and branding can all be customized. Full-container sea export is supported, with complete export documentation and professional packing to ensure smooth customs clearance and delivery.
After-Sales Service
Every Hightop machine is backed by a comprehensive after-sales support system:
Warranty — Standard warranty covers manufacturing defects on the main structure, engine and core hydraulic components.
Parts supply — Backed by the global parts network of Kubota and other brands, common wear parts — track shoes, rollers, filters, hydraulic seals — are kept in stock for fast dispatch.
Technical documentation — Operation manuals, hydraulic circuit diagrams, maintenance schedules and electrical drawings are provided with each delivery, enabling local mechanics to service the machine independently.
Remote support — Our professional after-sales team offers online technical consultation and troubleshooting guidance with quick response.
Spare parts kits — Customized spare parts kits are available for fleet customers, shipped with the initial order to minimize field downtime.
We are committed to making every customer buy with confidence and operate with peace of mind, building long-term and stable partnerships with distributors and end users worldwide.
3.5 Ton Excavator FAQ
Q1: What is the tail swing radius of the 3.5 ton excavator?
Only 885mm — among the tightest in the 3.5-ton class, allowing safe operation in confined urban sites.
Q2: What engine does it use?
A Kubota D1703 three-cylinder direct-injection diesel engine rated at 18.5kW @ 2200rpm, with 5.1L oil capacity for easy maintenance.
Q3: How deep can it dig?
Maximum digging depth is 3106mm, with a 5175mm maximum digging radius and 4938mm digging height.
Q4: What is the operating weight?
3500kg, with a transport-friendly length of 5029mm and width of 1720mm.
Q5: Can it climb slopes?
Yes — the 58% gradeability rating allows it to work confidently on slopes and uneven terrain.
Q6: What attachments does it support?
A standard 0.12m³ bucket plus optional attachments through the standard hydraulic circuit; the dozer blade is included for leveling and backfilling.
