Product Introduction
The rear bridge lime soil mixer is a tractor three-point hitch mounted road construction attachment, classified as professional lime soil mixing equipment. Equipped with an integrated heavy-duty automobile rear bridge as the core power transmission unit, it crushes raw soil and mixes it evenly with lime, cement or fly ash to form stable road base layers. As reliable subgrade mixing machinery and essential large scale road construction equipment, this unit counts as mainstream stabilized soil mixing equipment and standard road base machinery. Compact in overall structure, it also belongs to practical small engineering equipment that matches most medium and high-horsepower tractors, widely adopted for village road upgrading, factory lot foundation treatment and old pavement cold regeneration projects.
Material & Structural Specification
Heavy Cast Steel Rear Bridge Assembly: Integral cast rear axle and differential bear high mixing torque without overheating, equipped with independent oil storage cavities for convenient regular lubrication.
Triple Reinforced 20A Heavy-Duty Drive Chains: Three parallel chains share load to avoid tooth jumping and stretching under gravel-rich soil mixing.
Thick Q345 Manganese Steel Sealed Cabinet: Fully enclosed box body reduces curing agent splashing loss and dust pollution, with segmented welding for easy maintenance.
Modular Alloy Bullet Blade System: Composed of blade holder, blade plate and 20# forged alloy tips; each cutter is bolt-mounted for separate replacement instead of whole roller disassembly.
Spring Floating Front Scraper: Buffer spring design fits uneven ground automatically, locking mixing depth steady to guarantee flat subgrade surface.
Standard Three-Point Suspension Frame: Thick triangular welded hanger fits global mainstream tractor models for quick mounting and disassembly.
Wide Application Fields
Rural & Municipal Low-Grade Highway Subgrade
3:7 lime soil, two-ash gravel and cement stabilized soil mixing for village roads, branch urban roads and sidewalk base construction.
Old Pavement Renovation & Cold Regeneration
Crushing aged asphalt and concrete roads, on-site mixing for recycled subgrade treatment.
Industrial Site Foundation
Factory yards, parking lots, campus playground ground stabilization and leveling.
Agricultural Land Improvement
Farm passage hardening, saline-alkali soil neutralization and land consolidation.
Complete After-Sales Service
1.12-month factory warranty covers core rear bridge, mixing roller and triple drive chains under standard construction operation.
2.Multilingual technical team provides 24/7 online video guidance for tractor matching, installation, daily lubrication and blade replacement.
3.Global fast spare parts supply: alloy bullet cutters, drive chains, gear oil seals and tension springs can be delivered within 7 working days for full-container bulk orders.
4.Customization support: Adjust working width, blade density and suspension bracket according to regional road construction standards, free technical drawings supplied for large importers.
5.Export dedicated fumigated wooden case packaging with internal shockproof cushion to prevent collision damage during long sea transportation.
Common Customer Fault Solutions
1.Lime soil mixing equipment mixing roller stalls during deep subgrade mixing Solution: Cut off tractor power, clear stones and compacted soil stuck between blades; refill heavy anti-wear gear oil into rear bridge, tighten loose drive chain tensioners.
2.Subgrade mixing machinery produces uneven mixing depth on undulating terrain Solution: Adjust tension springs of front floating scraper to fit ground fluctuation; check tractor hydraulic lifting cylinder for oil leakage and replenish hydraulic fluid timely.
3.Rear bridge lime soil mixer triple chain jumps teeth after long-hour construction Solution: Replace overstretched worn chain segments with standard 20A heavy-duty chains; calibrate chain tension to eliminate excessive sagging.
4.Road base machinery alloy bullet blades wear rapidly on gravel mixed soil Solution: Slow tractor forward speed to reduce impact overload; stock spare blade assemblies for batch replacement and regularly clear stone debris around mixing roller.
5.Small engineering equipment rear bridge generates abnormal knocking noise Solution: Drain contaminated old gear oil and inject high-viscosity anti-wear lubricant; disassemble to inspect worn differential gears and replace damaged components immediately.
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