01 — Press System
400 Ton Four Column Hydraulic Press Machine
The 400-ton four-pillar hydraulic press from Sinter Hydraulics India is a critical forming solution for EV battery housing and enclosure manufacturing, delivering high precision structural components, excellent surface quality for sealing systems, reliable production for EV and energy industries, and scalable automation-ready manufacturing. Engineered with high-rigidity guidance and variable draw speeds, it forms lightweight alloy sheets into complex battery enclosures with minimal springback.
Use Case
The 400-ton four-pillar hydraulic press is designed for precision forming of EV battery housings and enclosures used in electric vehicles, energy storage systems (ESS), and hybrid battery modules. It processes aluminum alloys, stainless steel, high-strength steel, and composite sheets through deep drawing, flanging, and structural rib forming to create lightweight, crash-resistant battery trays and covers.
Core Applications
Precision deep drawing and stamped forming of aluminum and high-strength steel EV battery tray bottom shells
High-tonnage stamping, flanging, and rib profiling for electric vehicle battery pack top covers and enclosure frames
Compression molding and forming of lightweight composite and aluminum structural battery crash-protection members
Material
High-strength formable aluminum alloys including 5052, 5754, 6061, and 6082 series sheet metals
Austenitic stainless steel grades SS304 and SS316, along with advanced high-strength steel (AHSS) sheet materials
Mild steel sheets, galvanized structural steels, and fiber-reinforced thermoset or thermoplastic composite panels
Typical Products Processed
Deep-drawn aluminum EV battery tray bottom enclosures and modular battery cell hold-down frames
Stamped steel and aluminum upper battery pack protective lids, sealing covers, and battery module cases
Heavy-duty energy storage system (ESS) cabinet enclosures, structural tray stiffeners, and cross-beam reinforcements
Key Functions
Application of precise 400-ton hydraulic tonnage with regulated cushion pressure to draw deep battery tray shells without sheet wrinkling or tearing
Multi-stage speed and pressure management to form intricate perimeter sealing flanges for IP67/IP68 liquid-tight gaskets
Precision structural rib embossing across large sheet areas to increase structural rigidity while keeping component weight minimal
Controlled hydraulic ejection and cushion pin operation ensuring damage-free extraction of thin-walled aluminum battery covers
Why 400 Ton Hydraulic Press?
Delivers the ideal 400-ton force envelope required to deep-draw medium-to-large aluminum alloy sheets without exceeding material yield limits
High-rigidity four-pillar guide construction maintains absolute platen alignment under off-center loading, guaranteeing uniform flange thickness and warp-free seal surfaces
02 — Technical Specifications
SM 400 HP – HYDRAULIC PRESS MACHINE COMPLETE TECHNICAL DATA
The SM 400 HP heavy-duty hydraulic press delivers high-precision deep drawing force and rigid parallel slide guidance engineered specifically for EV battery housings and enclosure panels. Its pre-stressed four-column structure and multi-stage proportional hydraulic controls eliminate material wrinkling, ensure uniform wall thickness, and guarantee airtight sealing surfaces.
Capacity
- Maximum continuous compression deep drawing force capacity of 4000 kN
- Dedicated hydraulic bottom die cushion force capacity of 1500 kN
Structural Design
- Heavy stress relieved four column guide structure engineered for precise deep drawing and stamping operations
- FEA stress relieved heavy steel plate welded bolster and upper moving slide assembly
Frame Type
- Precision aligned solid induction hardened pillar frame guide structure
- Stress relieved heavy welded steel plate bolster and upper moving slide assembly
Hydraulic System
- High output variable displacement axial piston pump fluid power assembly
- Multi stage high capacity offline oil filtration loop with integrated oil coolers
Main Ram Stroke
- Maximum vertical slide compression travel distance capability of 800 mm
- Electronic stroke length limitation positioning resolution accurate within 0.005 mm
Working Hydraulic Pressure
- Maximum continuous operating main hydraulic system fluid pressure of 250 bar
- Peak shock safety valve pressure relief calibration threshold limit of 280 bar
Daylight Gap
- Maximum open vertical daylight window working clearance of 1200 mm
- Minimum closed shut die height tool workspace space of 300 mm
Approach Speed
- Accelerated downward advance slide rapid travel speed of 300 mm/Sec
- Controlled tool engagement deceleration velocity of 15 mm/Sec
Pressing / Drawing Speed
- Precision deep drawing and stamping speed of 5 to 15 mm/Sec
- Maximum resistance continuous forming velocity of 20 mm/Sec
Return Speed
- Smooth upward ram extraction retraction travel speed of 250 mm/Sec
- Fast automated hydraulic decompression pre return system cycle timing
Bed / Platen Size Platen
- Total clear bolster bed width left to right of 2000 mm
- Total clear bolster bed depth front to back of 1500 mm
Columns
- High tensile forged alloy steel pillar diameter of 200 mm
- Heavy duty wear resistant bronze guide bushings with automatic grease lubrication
Working Envelope
- Total horizontal internal clear workspace area of 2000 by 1500 mm
- Maximum permissible upper forming die assembly mass weight of 6000 kg
Control System
- Industrial programmable logic controller linked with a graphical touchscreen station
- Dual redundant non contact linear transducer position tracking systems accurate within 0.002 mm
Main Motor Power
- High efficiency primary hydraulic pump electric drive motor power of 45 kW
- Dedicated auxiliary cooling and continuous oil filtration motor power of 5 kW
Valves & Hydraulics
- High dynamic response proportional pressure and flow control cartridge valve manifold block
- Fast acting overhead gravity pre fill oil valve unit assembly
Automation
- Digital interface connection ports for synchronized robotic loading and unloading transfer systems
- Integrated multi point hydraulic die cushion pins and pneumatic part ejectors
Safety Features
- Dual channel infrared light curtain barriers guarding operator workspace zones
- Automated heavy duty dual fail safe mechanical anti drop ram safety locking blocks
SM 400 HP — Model Specifications
- Nominal Force: 4000 KN
- Maximum Hydraulic Pressure: 25 MPa
- Max Opening Height of the Slider: 1250 mm
- Max Stroke of the Slider: 800 mm
- Effective Bed Size: 1260 × 1160 mm
- Slider Down Speed: 100 mm/s
- Slider Pressing Speed: 7–12 mm/s
- Slider Return Speed: 100 mm/s
- Ejector Cylinder Nominal Force: 400 KN
- Stroke of the Ejection Cylinder: 300 mm
03 — Die / Mold System
Precision EV Battery Housing & Enclosures Die Mold Engineering
This precision EV battery housing and enclosure die mold features CNC machined alloy tool steel inserts, integrated hydraulic blank holders, and precision ejector systems. Engineered for 400-ton hydraulic deep drawing, it ensures uniform metal wall thickness, wrinkle-free flange forming, and tight perimeter sealing tolerances.
Technical Specifications (Tooling)
Die Type
- Precision multi stage deep drawing stamping and flanging die mold assembly for EV battery trays and covers
- Matched upper punch die set lower cavity die box and hydraulic blank holder cushion assembly
Die Materials
- High grade Cr12MoV tool steel punch and cavity inserts offering superior wear resistance during deep drawing operations
- Premium SKD11 tool steel draw rings and blank holder plates hardened for extended aluminum forming production runs
Tool Configuration & Construction
- Precision CNC machined modular die insert assembly designed for large format battery tray and lid geometry
- Rigid stress relieved cast iron base bolster plates engineered to eliminate tool deflection under full 400 ton press loads
Key Tooling Features
- Integrated multi point hydraulic blank holder pressure pins preventing sheet wrinkling and edge tearing
- Multi point pneumatic and hydraulic ejector pin networks ensuring smooth release of deep drawn battery enclosures
Alignment Accuracy
- Upper punch plate to lower die cavity guide pillar alignment deviation kept strictly under a limit of 0.008 mm
- Platen parallelism variance across active tool workspace restricted within a tolerance of 0.008 mm
Process Materials
- High strength formable aluminum alloys including 5052 5754 6061 and 6082 series sheet metals
- Austenitic stainless steel grades SS304 and SS316 along with advanced high strength steel AHSS sheets
Surface Finish
- Interior draw cavity surfaces ground mirror polished and TD coated down to a surface roughness of Ra 0.08 microns
- Friction reducing surface treatment preventing aluminum galling material pickup and surface scoring during deep drawing
Tool Life
- Expected operational span of 300000 deep drawing stamping cycles before requiring mandatory surface re polishing and inspection
- Total structural steel die frame and base assembly lifespan capacity reaching 1500000 production cycles before major rebuilds
Precision EV Battery Housing & Enclosures Die Mold
04 — Product Application
Where EV Battery Housing & Enclosures Are Used
Precision-formed EV battery housings and enclosure panels provide structural rigidity, IP67/IP68 environmental sealing, and crash protection. Their lightweight aluminum and high-strength steel compositions make them critical components for battery pack encapsulation across electric transportation and stationary energy sectors.
Industry Applications
EV battery housings and enclosures are deployed across passenger electric cars, commercial transport fleets, stationary energy storage systems (ESS), and heavy industrial machinery. High-precision 400-ton hydraulic forming guarantees tight dimensional tolerances, wrinkle-free flange sealing surfaces, and optimal strength-to-weight ratios, ensuring battery packs remain safe, weather-tight, and structurally sound under severe road and environmental conditions.
Passenger Electric Vehicles, Hybrids, and Commercial Fleets
Forms lightweight aluminum battery tray bottom shells, upper protective covers, and structural cell hold-down frames. Ensures crash-resistant battery pack encapsulation and airtight sealing surfaces to prevent moisture ingress and thermal runaway risks.
Commercial Energy Storage Systems and Industrial Power Units
Protects modular lithium-ion battery banks, power conversion systems, and backup power racks in outdoor industrial cabinets. Delivers corrosion-resistant steel and aluminum enclosures engineered to withstand severe weather exposure and ambient thermal cycles.
Electric Two-Wheelers, Three-Wheelers, and Urban Mobility
Provides compact, high-strength battery cases, removable module housings, and structural under-seat battery trays. Offers precision-formed sealing flanges that maintain dust and waterproof protection during daily urban commuting and rough usage.
Heavy Electric Trucks, Off-Highway Machinery, and Mining Equipment
Serves as heavy-duty, reinforced battery enclosures and protective structural crash shields for heavy transport vehicles. Withstands extreme mechanical vibrations, high impact forces, and harsh operating environments without structural cracking or deformation.
Finished Product Gallery
05 — Key Advantages
Why Choose the 400-Ton Sinter Hydraulic Press
The 400-Ton Sinter Hydraulic Press delivers high-precision deep drawing and stamping force for manufacturing lightweight aluminum and steel EV battery enclosures. Its rigid four-column guide architecture, proportional cushion control, and multi-stage speed regulation eliminate sheet wrinkling and guarantee airtight sealing flanges.
Technical & Commercial Benefits
Precision Deep Drawing Control Preventing Sheet Wrinkling and Tearing
Features a dedicated hydraulic bottom die cushion with independent pressure regulation to control material flow during deep drawing. Balanced blank holder force prevents edge wrinkling, thinning, and wall fracturing across complex aluminum tray geometries.
Rigid Four-Column Architecture Ensuring Uniform Flange Flatness
Engineered with pre-stressed forged alloy steel pillars that maintain strict upper and lower platen parallelism under full 400-ton hydraulic loads. Zero frame deflection guarantees flat perimeter sealing flanges, essential for IP67/IP68 liquid-tight gasket performance.
Multi-Stage Proportional Hydraulics Optimizing Draw Speeds
Utilizes high-response proportional pressure and flow control valves to adjust ram speed dynamically during critical deformation phases. Controlled deceleration minimizes springback and strain hardening, extending tool life and preserving material ductility.
Automated Cushion Pin Networks Streamlining Deep Tray Ejection
Integrates multi-point hydraulic cushion pins and pneumatic ejectors for smooth, non-destructive release of deep-drawn battery shells. Controlled ejection prevents part distortion, enabling high-speed processing without compromising delicate thin-walled components.
Flexible Tonnage and Stroke Setup Accommodating Diverse Alloy Sheets
Offers fully adjustable tonnage, stroke lengths, and dwell times through an intuitive PLC touchscreen interface for seamless mold changeovers. Versatile operating parameters allow rapid swapping between 5xxx/6xxx series aluminum, stainless steel, and composite panels.
High Cycle Efficiency Maximizing Production Line Output
Rapid approach speeds up to 300 mm/Sec paired with fast hydraulic decompression deliver high-volume throughput from 90 to 180 parts per hour. Lower cycle times reduce unit processing costs and accelerate payback for high-capacity EV manufacturing facilities.