Product Overview of SANY SY375H Crawler Excavator
The SANY SY375H crawler excavator is SANY flagship National Stage IV 37.5-ton heavy mining excavator, winner of China Construction Machinery Top50 Market Performance Gold Award, dominating 35–40 ton segment with 35% domestic market share in 2025. It is tailor-made for open-pit quarry stone loading, large mountain mass earthmoving, highway & railway foundation construction, bulk mineral stockyard heavy loading and large river dredging projects. This SANY SY375H crawler excavator adopts customized Isuzu 6HK1 six-cylinder turbocharged diesel engine with urea-free DPD integrated aftertreatment system, eliminating DEF urea tank to cut daily operation fault risks and maintenance expenditure drastically. Matched with Kawasaki large-spec dual main pump positive flow hydraulic system + SANY proprietary DMOS engine-pump-valve dynamic optimization intelligent control technology, it reduces comprehensive fuel consumption by 8–12% vs National III models while lifting hourly earthwork output by 12%, realizing “30-ton machine weight with 40-ton-class heavy-load efficiency”. Equipped with standard 1.9m³ heavy rock bucket (optional upgraded 2.15m³ large capacity bucket) and fully reinforced widened heavy-duty mountain-shaped X track chassis, oversized cross-section three-section box boom & arm with all key stress points forged and thickened, anti-torsion capacity improved by 10% for long-hour harsh mining impact operations. The new-generation ROPS/FOPS dual-certified positive pressure panoramic intelligent cab and full ground centralized one-side maintenance layout with large-capacity three-stage fuel filtration system greatly improve operator comfort and daily inspection efficiency, making SANY SY375H crawler excavator the most cost-effective high-output heavy construction machine for global quarry contractors, large earthmoving fleets and mining equipment rental businesses.
Full Official Technical Parameters of SANY SY375H Crawler Excavator
Basic Overall Dimension & Weight of SANY SY375H Crawler Excavator
- Model: SANY SY375H Urea-Free Heavy-Duty Mining & Large Earthmoving Crawler Excavator
- Operating Weight: 37500kg (37.5 ton, standard reach boom + 2.8m arm; upgraded SY375H-S: 37800kg)SANY Group
- Standard HD Rock Bucket Capacity: 1.9m³ general rock bucket, optional 1.7m³ narrow trenching bucket / 2.15m³ large capacity bulk bucket
- Standard Boom Length: 6500mm Three-section Reinforced Boom
- Standard Arm Length: 2800mm Heavy Rock Arm
- Overall Transport Total Length: 10820mm
- Overall Transport Total Width: 3190mm widened stable track base
- Overall Cab Top Height: 3320mm
- Track Gauge: 2590mm
- Track Length on Ground: 3760mm
- Standard Track Shoe Width: 600mm triple-grouser ultra-wear-resistant steel track shoe
- Minimum Ground Clearance: 520mm
- Rear Tail Swing Radius: 3520mm
- Ground Pressure: 68.8kPa
- Fuel Tank Volume: 540L large capacity for all-day continuous mining operation
- DEF Tank: None (urea-free DPD aftertreatment design)
- Hydraulic Oil Tank Volume: 380L
- Full System Hydraulic Oil Volume: 360L, service life up to 4000 working hours
- Engine Oil Capacity: 28L
Travel & Swing Performance
- Two-speed Travel Speed: Low gear 3.3km/h, High gear 5.3km/h, intelligent auto two-speed shift
- Slew Rotation Speed: 8.8rpm, upgraded swing torque up to 135kN·m (+15% vs old generation)
- Maximum Climbing Gradient: 35° (70%)
- Maximum Drawbar Traction Force: 276kN
- Travel System: Full hydraulic auto-shift dual-speed travel motor with built-in mechanical automatic parking brake, 9 bottom track rollers + 2 top carrier rollers per side with double-side heavy support structure for stable steep slope quarry climbing operation
- Slew System: Oversized reinforced multi-tooth roller slewing bearing + independent large-displacement hydraulic slew motor, built-in heavy-duty holding brake for steady bulk truck loading and precision ground grading
- Optional Configuration: Front floating heavy dozer blade for large construction site leveling work
ISO Standard Digging Working Range & Digging Force
- Max Horizontal Digging Radius: 10720mm
- Max Ground Digging Radius: 10510mm
- Max Digging Depth: 7260mm standard deep digging capacity
- Max Vertical Digging Depth: 6580mm
- Max Digging Height: 10420mm
- Max Material Dumping Height: 7180mm
- Minimum Front Swing Radius: 4210mm
- Max Bucket Digging Force (ISO): 235kN
- Max Arm Digging Force (ISO): 210kN (upgraded SY375H-S reaches 230kN)SANY Group
- Standard Factory Configuration: Pre-reserved multi-way heavy-duty hydraulic piping, compatible with 165mm large mining hydraulic breaker hammer
Isuzu Six-Cylinder Urea-Free Power Engine System
The SANY SY375H crawler excavator is equipped with globally mass-verified customized Isuzu GH-6HK1X six-cylinder inline turbocharged industrial diesel engine, fully compliant with China National Stage IV global emission standards with integrated DPD aftertreatment system without SCR DEF urea tank. You can check full engine official data via Isuzu official construction machinery engine website.
- Engine Model: Isuzu GH-6HK1X Water-cooled 6-cylinder inline turbocharged intercooled diesel engine
- Net Power – ISO 9249: 212kW / 284HP @ 2000rpm (SY375H-S: 210kW / 282HP @1900rpm)SANY Group
- Maximum Torque: 1080N·m @ 1500rpm, torque output increased by 20% vs previous generation
- Displacement: 7.79L large six-cylinder displacement for sustained heavy-load power output
- Emission Standard: China Stage IV (DOC+DPD integrated aftertreatment, no DEF urea required)
- Core Advantages: Silent automatic DPD remote regeneration without construction interruption; ultra-long 5000-hour DPD ash cleaning cycle; three-stage large-capacity fuel filtration system adapts low-quality mining fuel; upgraded enlarged composite radiator, water cooling capacity +10%, hydraulic oil cooling capacity +5% for high-temperature mine environment; stable cold start at -20°C; 500-hour synchronized filter maintenance interval; global complete spare parts supply network for overseas mining sites.
Kawasaki Positive Flow Hydraulic System with SANY DMOS Intelligent Control
- Main Pump Configuration: Dual imported Kawasaki large-displacement variable displacement piston main pumps
- Total Main Pump Max Output Flow: 2 × 286 L/min combined high flow
- Max System Working Pressure – Equipment: 34.3MPa
- Max Travel Circuit Pressure: 33.8MPa
- Max Slew Circuit Pressure: 34.3MPa
- Pilot Control Pressure: 3.9MPa
- Control Logic: SANY proprietary DMOS engine-pump-valve dynamic feedforward intelligent load matching control technology, high flow-pressure fitting accuracy, reduces mid-position reflux energy loss by 10%, 15% faster compound action response, boom & arm energy regeneration circuit recycles overflow hydraulic energy, smooth synchronous lifting/digging/slewing/dumping without impact or lag
- Four preset working modes: Standard / High-Efficiency / Crushing / High-Altitude, one-touch switch matching light landscaping, heavy earthmoving, plateau and rock breaking scenarios
- Auxiliary Hydraulic Circuit: Factory pre-installed multi-function heavy-duty breaker piping, compatible with large hydraulic rock hammer, hydraulic shear, stone grab, log thumb grab and hydraulic quick hitch coupler
- Hydraulic Oil Replacement Cycle: Extended to 2000 working hours, full system hydraulic oil service life warranty up to 4000 hours
Chassis & Fully Reinforced Mining-Grade Working Attachment
Crawler Chassis Frame
- Integral ultra-thickened mountain-shaped X-type heavy anti-torsion frame, full penetration robot welding technology, impact-resistant structure optimized for open-pit mining and heavy mountain earthmoving conditions
- 9 bottom track rollers + 2 top carrier rollers per side, fully sealed long-lubrication track pins, thick quenched high-wear steel track shoes with anti-slip deep pattern, long service life under muddy river dredging and rocky quarry construction sites
- Optional front floating heavy dozer blade with floating leveling function for large construction yard flatting
Boom & Arm Working Device
- Boom, arm and bucket base adopt ultra-high strength low-alloy wear-resistant steel plate, all stress joint positions thickened with oversized buffer anti-shock heavy bushings; three-section boom key force points adopt integral forging process
- Oversized widened cross-section box-type boom & arm structure, anti-torsion capacity improved by 10% via finite element simulation to eliminate partial load stress concentration
- High-efficiency curved heavy-duty rock bucket design with 60mm thick HB450 ultra-thick imported wear-resistant cutting edge, higher stone & soil filling efficiency and ultra-low daily abrasion loss
Cab, Electronic Control & Safety Configuration
- Cab Type: Fully enclosed positive pressure dustproof & noise reduction ROPS/FOPS dual-certified falling object & anti-roll safety cab, high-strength energy-absorbing integral stamping steel frame with anti-collision reinforcement design, mine-grade dust sealing system
- Standard Interior Equipment
- 10-inch upgraded high-resolution intelligent color LCD touch monitor, grid-style app layout, color-coded fault notifications, built-in QR code machine tutorial, real-time display fuel consumption, engine status, DPD regeneration and four working mode switching, support custom startup password & one-touch engine start
- Multi-adjustable automotive-grade air suspension shock absorption seat with heating function, flip left armrest to widen boarding space
- Ergonomic ISO standard pilot control joysticks with three shortcut buttons for breaker operation, USB fast charging port, Bluetooth hands-free call & audio playback
- Large panoramic laminated safety glass, full surrounding sunshade, factory standard wide-angle rearview camera
- Optional Upgrades: Full automatic constant temperature heating & cooling air conditioner, 360° panoramic surround camera, multi-group high-bright LED mining night working lights
- Internal Operating Noise: ≤76dB
- Safety Design: Ground-level engine emergency shutoff switch, lockable power disconnect switch, overload sound-light alarm, hydraulic safety lock handle, anti-roll reinforced cab frame; all daily maintenance service points set at ground height without climbing steps, rotatable condenser bracket for easy radiator dust cleaning to solve mine dust clogging troubles
Standard Factory Equipment & Optional Matching Attachments
Standard Configuration
1.9m³ heavy rock bucket, pre-installed mining breaker hydraulic piping, 600mm steel track shoes, ROPS/FOPS dual-certified positive pressure intelligent safety cab, Kawasaki dual-pump DMOS intelligent positive flow hydraulic control system, four-mode ECO fuel consumption intelligent monitoring system, three-stage large-capacity fuel filtration system, factory rearview camera
Optional Attachments
Front floating heavy dozer blade, rubber track pad, 1.7/2.15m³ narrow/bulk bucket, 165mm large mining hydraulic stone breaker, hydraulic shear, earth auger, stone grab, log thumb grab, hydraulic quick hitch coupler, 360° panoramic surround view camera, full automatic cab heating & cooling air conditioner
Six Core Competitive Advantages of SANY SY375H Crawler Excavator
1. Isuzu Urea-Free DPD Stage IV Power, Zero DEF Operation & Ultra-Low Maintenance Cost
Equipped with genuine customized Isuzu six-cylinder turbo engine adopting DPD integrated aftertreatment without SCR urea tank, the SANY SY375H crawler excavator completely eliminates urea purchase, filling and pipeline blockage fault troubles that plague most 37-ton-class mining excavators. Silent automatic DPD regeneration runs during normal digging without stopping construction, maximizing daily machine attendance rate; synchronized extended maintenance intervals cut overall maintenance cost by up to 50% vs conventional heavy excavators, perfectly matching long-term mining fleet low-operation-cost demand. Six-cylinder layout delivers stable sustained high torque for continuous 12-hour quarry shifts and high-altitude plateau construction environments.
2. DMOS Kawasaki Positive Flow Hydraulic System, 12% Higher Output & 12% Less Fuel Consumption
The upgraded dual Kawasaki large-spec pump-valve hydraulic system paired with proprietary DMOS engine-pump-valve feedforward intelligent load matching control reduces internal pressure loss by 10%, with 15% faster action response speed and minimal idle energy loss. All compound lifting, digging, slewing and dumping actions run synchronously without lag; one-click power boost instantly raises digging force to handle compact hard soil and broken rock construction conditions, shortening truck loading cycle time by 14% and lifting daily earthwork output by 12% vs older generation models, realizing “30-ton weight with 40-ton mining efficiency”. Four preset working modes freely switch to adapt landscaping, heavy earthmoving, plateau and rock breaking scenarios.
3. Full Mining-Grade Reinforced Structural Parts, Extended Service Life For Harsh Quarry Sites
The whole machine mountain-shaped X-frame chassis, oversized widened cross-section three-section boom & arm and multi-roller heavy track system of the SANY SY375H crawler excavator are fully upgraded for open-pit quarry, mountain mass earthmoving and river dredging working conditions. Double-side multi-roller heavy support track structure, thickened high-strength steel working attachments and full penetration anti-impact robot welding structure effectively resist mud abrasion and stone impact, extending whole machine service cycle and reducing wearing part replacement frequency by 30%. All key boom & arm force points adopt integral forging process, lifting anti-torsion capacity by 10% to avoid deformation under long-hour heavy impact rock loading.
4. ROPS/FOPS Dual-Certified Mine-Grade Intelligent Cab, All-Day Low-Fatigue Operator Experience
The fully sealed positive pressure large cab passes international ROPS anti-roll and FOPS anti-falling dual safety certification, adopts mine-grade multi-layer dust sealing structure and automotive-grade interior materials to effectively isolate quarry rock dust and engine running noise, internal noise controlled below 76dB. Adjustable air suspension heating seat, ergonomic pilot joysticks and 10-inch high-definition touch monitor effectively relieve operator fatigue during continuous 8–12 hour heavy mining construction shifts. Panoramic large glass and optional 360° panoramic camera eliminate operation blind zones to guarantee construction safety on busy highway, river and quarry sites.
5. Ground Centralized One-Side Maintenance Layout, 45% Faster Daily Inspection
All engine oil, hydraulic oil, fuel filters, DPD inspection ports and daily maintenance components of the SANY SY375H crawler excavator are centrally arranged on the wide side hood at ground height, operators complete routine oil replacement and fault inspection without climbing ladders. Unique rotatable condenser bracket simplifies radiator dust cleaning to solve quarry dust clogging troubles; standard three-stage large-capacity fuel filtration system adapts low-quality mine fuel to protect engine core components. Global universal Isuzu engine spare parts and SANY hydraulic components shorten machine downtime, greatly cutting maintenance labor and time cost for equipment owners. Hydraulic oil service life extended to 4000 hours, further reducing long-term maintenance expenditure.
6. Multi-Functional Heavy Attachment Compatibility, High Equipment Investment Return Rate
The SANY SY375H crawler excavator reserves complete multi-way heavy auxiliary hydraulic piping, compatible with 165mm large mining hydraulic rock breaker, hydraulic shear, stone grab, timber grab and quick hitch coupler. It supports rapid attachment switching without tool disassembly, freely switching between municipal road reconstruction, highway infrastructure earthmoving, river dredging and open-pit quarry stone mass loading tasks, maximizing machine utilization rate and investment profit margin for global mining contractors and heavy engineering rental fleets.
Wide Application Scope
The SANY SY375H crawler excavator is widely used for open-pit stone quarry heavy loading, large mountain mass earthmoving, highway & railway foundation excavation, river channel dredging, bulk mineral stockyard loading, farmland large-scale renovation and large landfill construction projects. If you need balanced 22.5-ton six-cylinder medium digger for general highway and municipal construction yards, check our XCMG XE215GA Crawler Excavator. For ultra-heavy 50-ton large mining excavator for mass mountain stone high-volume loading projects, view the SANY SY485H Crawler Excavator product page.
The SANY SY375H crawler excavator is a high-output 37.5-ton heavy mining earthmoving digger equipped with six-cylinder high-torque Isuzu urea-free Stage IV low-fuel turbo engine and imported Kawasaki DMOS intelligent feedforward positive flow hydraulic system. Featuring 40-ton-class mining efficiency, full mine-grade reinforced anti-wear structure, four multi-scenario adjustable working modes and ultra-low comprehensive maintenance cost, this SANY SY375H crawler excavator is the most reliable high-efficiency heavy construction machinery for global open-pit quarry, large highway infrastructure, river dredging and heavy equipment rental engineering customers.
