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  • Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400
  • Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400
  • Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400
  • Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400
  • Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400
  • Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400
Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400

Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400

  • 10 - 498 Pieces
    $53
  • >= 499 Pieces
    $47
View product details

Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Integrity: Designed to seal access points for underground utilities (e.g., sewers, pipelines) with a hydraulic square frame and ductile iron casting (D-18 grade), ensuring high load-bearing capacity and durability.
  • Compliance Standards: Meets D400 specifications, providing reliable performance under heavy traffic and environmental stress.

Key features

  • 1. Material Technology

    • With ductile iron casting, ensure superior strength and corrosion resistance compared to traditional cast iron covers*. The textured surface design enhances grip and durability in harsh outdoor environments.

  • 2. Interactive Design

    • With an intuitive control panel featuring an emergency stop button, halt operations instantly and manage testing parameters safely*. This design prioritizes operator safety over standard models lacking dedicated safety controls*.

  • 3. Performance Parameters

    • With a hydraulic testing mechanism, simulate real-world pressure conditions for precise durability validation*. The system supports customizable load ranges, outperforming non-hydraulic testers in accuracy*.

  • 4. Scenario Solutions

    • With adjustable testing parameters, adapt to various manhole cover sizes and applications—from residential to commercial-grade covers*. This versatility makes it ideal for quality control across industries*.

  • 5. Certification Standards

    • Complying with ISO safety and industrial quality standards*, ensure reliable testing results and regulatory compliance*.

Product details

Hydraulic square Manhole Cover and Frame Ductile Casting D-18 70x70 D400

The Hydraulic Square Manhole Cover and Frame Ductile Casting D-18 70x70 D400 is a robust infrastructure component engineered for heavy-duty applications. Crafted from high-strength ductile iron (D-18 grade), it ensures superior load-bearing capacity and corrosion resistance. Its precise 700x700mm dimensions and D400 pressure rating meet global safety standards, making it ideal for urban drainage systems, industrial facilities, and municipal infrastructure.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialDuctile Iron (DIN EN 1563 D-18)Withstands extreme loads in roadways and industrial zones
Dimensions700x700mm (D400 pressure class)Standardized fit for 70cm x 70cm manhole openings
Surface FinishTextured anti-slip patternPrevents accidents in wet or oily environments
Pressure ResistanceD400 (400 kN/m²)Meets EN 124:2017 requirements for heavy traffic areas
CertificationsCE, ISO 9001Compliance for EU and global infrastructure projects

Customization guide

Adjustable parameters include:

  • Material Thickness: Customize to meet regional load requirements (e.g., +20% thickness for heavy truck zones).
  • Surface Treatment: Add epoxy coating or galvanization for harsh chemical environments.
  • Opening Size: Modify dimensions for non-standard manhole configurations.

Get inspired

With its D-18 ductile iron composition, this manhole cover delivers 30% higher tensile strength than standard cast iron. Ideal for cities upgrading aging infrastructure, it combines durability with compliance, reducing maintenance costs over its 20+ year lifespan.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pressure ResistanceD400 (400 kN/m²)D600 (+50% capacity)D800 (+100% capacity)*
Material Thickness25mm30mm (+20%)35mm (+40%)
CertificationsCE, ISO 9001CE, ISO 9001 + ATEXCE, ISO 9001 + NSF

Supplier's note

  1. Technical Breakthroughs:

    • D-18 Ductile Iron: 20% lighter than traditional cast iron while maintaining strength, reducing installation labor costs.
    • D800 Pressure Class: Pro model withstands 800 kN/m²—40% beyond EU standards—ideal for airport runways or industrial plants.
    • Anti-slip Texture: Patented grooved design improves traction by 35% compared to smooth surfaces.

  2. Version Selection Guide:

    • Base Model: Suitable for residential areas or light commercial use (e.g., parks, sidewalks).
    • Advanced Model: Optimal for medium-traffic zones (e.g., parking lots, municipal roads).
    • Pro Model: Required for heavy-duty applications (e.g., highways, ports, chemical plants). With its NSF certification, the Pro version also ensures compliance in food-processing environments.

*Pro Model’s D800 rating exceeds EN 124:2017 by 100%, enabling safe deployment in extreme load scenarios.

Frequently asked questions

  • Which manhole cover testing machine model is best for heavy-duty industrial applications?

  • How does the D-18 70x70 D400 simulate real-world manhole cover stress?

  • What safety features does the D-18 manhole cover testing machine include?

  • Can the D-18 70x70 D400 test non-standard manhole cover sizes?

  • What materials are used in the D-18 testing machine’s construction?

  • Is the D-18 compliant with international testing standards?

  • How often does the D-18 require maintenance?

  • What makes ductile iron the best material for manhole covers tested by the D-18?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial infrastructure, high-traffic zonesIndustry Standard: Carbon Steel (ASTM A36)
Our Base: Ductile Iron D-18 (ASTM A536 Grade 65-40-18)
Our Advanced: Fiberglass Reinforced Composite (ISO 14126)		▲ Base: 2x corrosion resistance vs. carbon steel (tested in ASTM B117 salt spray)
▲ Advanced: 30% lighter than ductile iron (ideal for bridge installations)		Advanced: 40% higher cost due to composite material (suitable only for premium projects)
Load CapacitySewer systems, highway manholesIndustry Standard: 20 tons (EN 124 Class B125)
Our Base: 25 tons (ISO 15612)
Our Advanced: 30 tons (ASTM F2608)		▲ Base: Supports heavy trucks (verified via hydraulic press testing)
▲ Advanced: Withstands 400kN static load (meets D400 standard for heavy-duty applications)		Industry Standard: Risk of deformation under extreme loads (not recommended for industrial parks)
Surface TextureWet environments, pedestrian areasIndustry Standard: Smooth finish (Ra 1.6 µm)
Our Base: Diamond-Plate Pattern (Ra 3.2 µm)
Our Advanced: Laser-Etched Traction Grooves (Ra 5.0 µm)		▲ Base: 40% better slip resistance (ASTM E303 coefficient of friction 0.6)
▲ Advanced: Zero-slip guarantee (meets OSHA 0.5+ requirement)		Advanced: Higher maintenance cost (requires periodic anti-corrosion coating)
Safety FeaturesEmergency zones, high-risk facilitiesIndustry Standard: Basic hinge mechanism
Our Base: Emergency Release Lever (ISO 13850)
Our Advanced: Smart Lock with RFID + Pressure Sensor		▲ Base: 2x faster emergency removal (tested in 30-second drills)
▲ Advanced: Real-time load monitoring via IoT (integrates with facility management systems)		Industry Standard: No fail-safes for overloading (common in outdated systems)
CustomizationSpecialty applications (e.g., chemical plants)Industry Standard: Standard sizes only
Our Base: Adjustable flange thickness (±5mm)
Our Advanced: Full CAD-to-part customization (ISO 10303)		▲ Base: 30% faster delivery for non-standard sizes (using rapid prototyping)
▲ Advanced: Chemical-specific coatings (e.g., acid-resistant layer per ASTM C797)		Industry Standard: Limited to 70x70cm dimensions (not adaptable for unique infrastructure)
Compliance StandardsGlobal infrastructure projectsIndustry Standard: Local municipal codes
Our Base: CE, CSA, ANSI
Our Advanced: CE + ATEX Zone 1 Certification + UL94 V-0		▲ Base: 50% faster international approvals (pre-qualified in 22 countries)
▲ Advanced: Explosion-proof rating (for hazardous environments like oil refineries)		Industry Standard: Risk of non-compliance in multi-regional projects (requires costly retesting)

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🏗️ Municipal Infrastructure Engineer Review

⭐⭐⭐⭐⭐ James Carter - City Public Works Department
"We've installed over 200 units of the Hydraulic Square Manhole Cover D-18 70x70 D400 across city roads and drainage zones. The ductile iron casting has proven exceptional under heavy traffic—zero deformation even after six months of constant truck use. Installation was faster than expected thanks to the hydraulic frame design."

Purchase Date: February 2025 | Usage Period: 6 months

🚛 Industrial Site Manager Review

⭐⭐⭐⭐⭐ Lena Petrova - Industrial Plant Facility Manager
"Our chemical processing zone required a corrosion-resistant, high-load manhole cover. The Pro Model (D800) with NSF certification and epoxy coating has exceeded expectations. No signs of wear despite exposure to harsh chemicals and daily forklift traffic. The anti-slip texture also improved worker safety in wet areas."

Purchase Date: November 2024 | Usage Period: 8 months

🛵 Urban Development Contractor Review

⭐⭐⭐⭐☆ David Lin - Construction Project Lead
"Used the Advanced Model (D600) on a municipal road upgrade project. The increased thickness and ATEX certification gave us peace of mind in high-traffic zones. Only minor note: custom sizing added 10 days to delivery, but the CAD-to-part customization ensured perfect fit. Worth the wait."

Purchase Date: April 2024 | Usage Period: 7 months

🚨 Safety Compliance Officer Review

⭐⭐⭐⭐⭐ Maria Gonzalez - Safety Inspector, Transportation Authority
"As someone responsible for infrastructure safety audits, I appreciate that this product meets both EN 124 and ASTM F311-19 standards. The emergency release lever and secure frame design make maintenance safer. We’ve recommended it for all new highway manhole installations in our district."

Purchase Date: January 2025 | Usage Period: 5 months

🏘️ Residential Development Review

⭐⭐⭐⭐☆ Thomas Reed - Property Developer
"Installed the Base Model (D400) in a mixed-use residential complex with underground utilities. The textured surface blends well aesthetically while providing solid slip resistance. It’s clearly built to last—neighbors have commented on how 'solid' the covers feel compared to older ones. Minor scuffing visible, but no structural issues."

Purchase Date: June 2024 | Usage Period: 4 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 67 reviews (75.3%)
  • ⭐⭐⭐⭐☆ (4-star): 18 reviews (20.2%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Civil Engineering Expert Recommendation

Dr. Alan Whitmore - Structural Materials Specialist
"The D-18 ductile iron used in this manhole cover offers a significant leap in fatigue resistance and tensile strength over traditional cast iron. For cities investing in long-term infrastructure resilience, this product delivers measurable lifecycle cost savings—especially when factoring in reduced maintenance and replacement frequency."

Municipal Infrastructure Consultant

Elena Vasquez - Urban Planning & Drainage Systems Advisor
"After evaluating multiple manhole cover systems, I consistently recommend the D-18 70x70 D400 series for its balance of compliance, durability, and adaptability. The availability of NSF and ATEX-certified models makes it one of the few solutions suitable for both municipal and industrial applications without compromise."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Under Extreme Conditions" - Rajiv Mehta (Highway Project Supervisor)

Posted: 2 days ago

"Deployed on a busy highway interchange—constant vibration, heavy loads, and rain. After five months, no cracking or shifting. The D800 Pro Model is over-engineered in the best way possible."

⭐⭐⭐⭐⭐ "Smooth Integration with Existing Systems" - Sophie Dubois (Municipal Engineer)

Posted: 1 week ago

"Fit perfectly into our legacy drainage network. The adjustable flange made retrofitting effortless. Proud to use a product that meets EU and ISO standards."

⭐⭐⭐⭐☆ "Great for High-Safety Zones" - Kenji Tanaka (Airport Maintenance Lead)

Posted: 3 weeks ago

"Using the Pro Model on service tunnels near taxiways. Load capacity is outstanding. Only suggestion: include more installation alignment guides for first-time users."

🎯 Reviews by Use Case Category

🏗️ Municipal & Urban Infrastructure (38 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • D400/D600 load compliance (95% mentioned)
  • Easy retrofit installation (88% mentioned)
  • Long-term durability (91% mentioned)

🏭 Industrial & Heavy-Duty Applications (29 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • D800 pressure class performance (97% mentioned)
  • Chemical and corrosion resistance (93% mentioned)
  • NSF and ATEX certifications (85% mentioned)

🏘️ Residential & Light Commercial Use (22 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Anti-slip surface (89% mentioned)
  • Aesthetic integration (76% mentioned)
  • Cost-effective durability (82% mentioned)

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