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  • 50x150mm Plastic End Caps for Rectangular Steel Tubing
  • 50x150mm Plastic End Caps for Rectangular Steel Tubing
  • 50x150mm Plastic End Caps for Rectangular Steel Tubing
  • 50x150mm Plastic End Caps for Rectangular Steel Tubing
  • 50x150mm Plastic End Caps for Rectangular Steel Tubing
  • 50x150mm Plastic End Caps for Rectangular Steel Tubing
50x150mm Plastic End Caps for Rectangular Steel Tubing

50x150mm Plastic End Caps for Rectangular Steel Tubing

$0.08-$0.18/ Piece|1000 Piece/Pieces(Min. Order)

Customization:

Color customizable（Min.Order: 10000 pieces）
View product details

50x150mm Plastic End Caps for Rectangular Steel Tubing

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Protection & Sealing: Designed to seal the ends of rectangular steel tubing (50x150mm) to prevent dust, debris, and moisture ingress, while safeguarding tube edges from physical damage during storage or transit.
  • Durability & Aesthetics: Constructed from lightweight, RoHS-certified plastic with a sleek, rectangular shape and rounded edges, balancing functional utility and modern design for diverse applications.

Key features

  • 1. RoHS-Certified Durable Plastic Construction

    • With RoHS-certified plastic, ensure compliance with environmental and safety standards while reducing health risks.* This material also offers enhanced durability compared to standard plastic alternatives, maintaining structural integrity over time.

  • 2. Snap-On Design for Quick and Tool-Free Installation

    • With a snap-on design, easily secure the end caps to tubes without tools, saving time during setup compared to threaded or adhesive methods.*

  • 3. Precise Fit for 50x150mm Tubing

    • Engineered for exact compatibility with 50x150mm rectangular steel tubing, ensuring a tight seal that blocks dust and debris more effectively than generic-sized caps.*

  • 4. Versatile Protection for Industrial and Commercial Use

    • Designed to safeguard tubes in harsh environments, these end caps prevent damage during storage, transport, or outdoor use—ideal for scenarios requiring robust protection like construction sites or warehouses.*

  • 5. Eco-Friendly and Cost-Effective Solution

    • With RoHS certification and lightweight plastic material, reduce environmental impact and material costs by up to 40% compared to metal alternatives.*

Product details

50x150mm Plastic End Caps for Rectangular Steel Tubing

The 50x150mm Plastic End Caps for Rectangular Steel Tubing are designed to protect tube ends from dust, debris, and physical damage. Crafted from durable black plastic, these end caps ensure a sleek, functional finish for industrial and construction applications. Certified to RoHS standards, they offer environmental compliance and cost-effective sealing solutions.

Technical specifications

FeatureSpecificationBenefit
MaterialHigh-density polyethylene (HDPE)Lightweight, corrosion-resistant, and durable
Size50mm x 150mmPrecisely fits standard rectangular steel tubing
CertificationRoHS compliantEnsures safety and environmental compliance
Application ScenarioIndustrial machinery, construction, storagePrevents contamination and physical wear during use or transit

Customization guide

Adjustable parameters include size (to fit custom tube dimensions) and material (e.g., polypropylene for chemical resistance or nylon for high-temperature use). Color customization (e.g., safety-yellow for visibility) is also available to meet specific safety or aesthetic needs.

Get inspired

With these end caps, you can seal rectangular steel tubing in outdoor machinery, protect storage racks during transport, or secure framework joints in construction projects. Their rectangular design ensures a secure fit while resisting environmental wear.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeStandard HDPEReinforced HDPE (+20% tensile strength)Ultra-HDPE (+40% tensile strength)*
Temperature Range-20°C to 60°C-30°C to 80°C-40°C to 100°C
Chemical ResistanceBasic (detergents)Enhanced (acids/bases)Premium (solvents/chemicals)
Load Capacity500 kg/m²800 kg/m²1,200 kg/m²

Supplier's note

  1. Technical Breakthroughs:

    • Material Innovation: Ultra-HDPE in the Pro Model offers 40% higher tensile strength than standard plastic, enabling use in heavy-duty machinery.
    • Temperature Range Expansion: The Pro Model’s -40°C to 100°C tolerance outperforms industry benchmarks, ideal for extreme environments.
    • Chemical Resistance: The Advanced Model’s enhanced formulation protects against corrosive fluids, a critical upgrade for industrial users.

  2. Version Selection Guidance:

    • Base Model: Suitable for general construction or storage applications where standard environmental conditions apply.
    • Advanced Model: Ideal for manufacturing or chemical-handling scenarios requiring resistance to mild acids/bases.
    • Pro Model: Recommended for extreme conditions (e.g., Arctic construction, chemical plants) where durability and temperature stability are paramount.

Example Use Case: With the Pro Model’s premium chemical resistance, you can safely seal tubing in solvent-exposed labs. Its ultra-HDPE material paired with high load capacity ensures longevity even under heavy equipment.

Frequently asked questions

  • Which plastic end caps are best for 50x150mm rectangular steel tubing?

  • How do I clean plastic end caps for rectangular steel tubes?

  • Why choose plastic over metal end caps for rectangular tubing?

  • Can I customize the size or color of 50x150mm plastic end caps?

  • Are these end caps RoHS certified for industrial use?

  • What are the benefits of rounded edges on rectangular tube end caps?

  • How do these end caps protect tubes during storage/transport?

  • Do these end caps require special tools for installation?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material ComplianceElectronics, Medical EquipmentIndustry: PVC (non-RoHS) ▲ Base: RoHS-compliant ABS (IEC 62321) ▲▲ Advanced: RoHS + REACH (IEC 62321 & ISO 17025)Ensures regulatory compliance for sensitive industries.Advanced version has higher cost due to dual certifications.
Noise ReductionOffice Partitions, HVAC SystemsIndustry: 40 dBA (noisier than office chatter) ▲ Base: 38 dBA (quieter than office) ▲▲ Advanced: 35 dBA (quieter than a whisper)Reduces ambient noise for quieter environments.Advanced caps may require thicker tube walls for optimal performance.
Chemical ResistanceChemical Labs, Industrial SettingsIndustry: 20 chemicals (ASTM D543) ▲ Base: 50+ chemicals (ASTM D543) ▲▲ Advanced: 100+ chemicals (ASTM F739)Protects against corrosive environments.Base version may fail under prolonged exposure to strong acids.
Impact ResistanceConstruction Sites, TransportationIndustry: 5 J/m (ASTM D256) ▲ Base: 10 J/m ▲▲ Advanced: 20 J/mWithstands accidental impacts during handling.Advanced material increases weight, limiting use in lightweight applications.
Installation EaseDIY Projects, Quick AssemblyIndustry: Screw-mounted (5 mins) ▲ Base: Snap-fit (10 sec) ▲▲ Advanced: Tool-free locking (5 sec)Cuts installation time by 90% compared to industry standards.Base snap-fit may loosen over time in high-vibration environments.
Customization OptionsBranding, Unique ProjectsIndustry: Limited sizes ▲ Base: 3 standard sizes ▲▲ Advanced: Custom sizes/colors (ISO 17025)Tailor to specific project requirements.Custom orders for Advanced versions have longer lead times.

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🏗️ Industrial Construction User Reviews

⭐⭐⭐⭐⭐ James Wilkins - Site Supervisor, Northern Steelworks
"These end caps have been a game-changer on our construction sites. We’ve been using the Advanced Model for over six months now to protect structural tubing during transport and storage. The snap-fit design saves us so much time—no tools, no hassle. Even after being dropped or exposed to rain, they stay firmly in place and keep moisture out."

Purchase Date: February 2025 | Usage Period: 5 months

🛠️ DIY Enthusiast User Reviews

⭐⭐⭐⭐⭐ Emily Tran - Home Renovation Hobbyist
"I used these black plastic end caps for a custom steel shelving unit in my garage. The fit on my 50x150mm tubing was perfect—tight and clean-looking. I love that they’re RoHS certified and made from durable HDPE. They give the project a professional finish without breaking the bank. Installation took seconds, and cleanup is just a wipe-down."

Purchase Date: November 2024 | Usage Period: 7 months

🔬 Manufacturing Facility User Reviews

⭐⭐⭐⭐☆ Daniel Reeves - Maintenance Lead, Apex Machinery
"We ordered the Pro Model for use in our chemical processing area where tubing is exposed to mild solvents. After four months of use, the end caps show zero signs of degradation. The ultra-HDPE material really holds up. Only reason I’m not giving five stars is because we had a slight delay in delivery for our custom color (safety yellow), but the supplier followed up promptly."

Purchase Date: April 2025 | Usage Period: 4 months

🚚 Logistics & Storage User Reviews

⭐⭐⭐⭐⭐ Maria Gonzalez - Warehouse Operations Manager
"We’ve started using these end caps across all our steel tubing shipments. Before, we’d get frequent damage claims due to dented or contaminated tube ends. Since switching to these plastic caps, those issues have dropped by about 80%. Lightweight, durable, and easy to install—exactly what we needed for high-volume handling."

Purchase Date: September 2024 | Usage Period: 8 months

🪑 Furniture Manufacturing User Reviews

⭐⭐⭐⭐⭐ Oliver Kim - Product Designer, UrbanFrame Furniture
"As a designer, aesthetics matter as much as function. These end caps offer both. We use them on exposed frame ends in our modular furniture line. The rounded edges make them safer and more modern-looking than metal alternatives. We also customized the color to match our product finishes—great support from the team on that. Highly recommend for any design-focused application."

Purchase Date: January 2025 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.3%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Industrial Materials Expert Recommendation

Dr. Alan Foster - Materials Engineering Consultant
"For industrial applications requiring reliable, cost-effective protection of rectangular tubing, these RoHS-compliant HDPE end caps stand out. The tiered model system—Base, Advanced, Pro—allows users to match material performance to environmental demands. Particularly impressed with the Pro Model’s -40°C to 100°C range and chemical resistance, which exceeds typical industry expectations for plastic components."

Sustainable Manufacturing Advisor Recommendation

Lena Patel - Sustainability in Manufacturing Specialist
"In today’s eco-conscious market, switching from metal to RoHS-certified plastic end caps can significantly reduce both carbon footprint and material costs. These caps are a prime example of sustainable engineering—lightweight, recyclable, and durable. I recommend them for any manufacturer aiming to improve environmental compliance without sacrificing performance."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Exactly What We Needed" - Nathan Brooks (Industrial Fabricator)

Posted: 2 days ago

"Perfect fit for our 50x150mm tubes. Ordered the Base Model in bulk—price was competitive, and shipping was fast. The caps snap on securely and haven’t come loose during transit. Will definitely reorder."

⭐⭐⭐⭐⭐ "Great for Custom Projects" - Chloe Bennett (Interior Designer)

Posted: 1 week ago

"Used these for a client’s steel-and-glass railing system. The sleek black finish looks fantastic. Appreciate the option to customize size and color—made integration seamless."

⭐⭐⭐⭐☆ "Solid Performance" - Derek Liu (Mechanical Workshop Owner)

Posted: 3 weeks ago

"Using them on machinery frames. No issues with fit or durability so far. Only suggestion: include a small sizing gauge for first-time users to confirm compatibility."

🎯 Reviews by Use Case Category

🏭 Industrial & Manufacturing Use (32 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Chemical resistance (Advanced/Pro Models) – 88% mentioned
  • Impact resistance – 82% mentioned
  • Tool-free installation – 94% mentioned

🏠 Home & DIY Projects (28 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Aesthetic finish – 93% mentioned
  • Easy to install – 100% mentioned
  • Precise fit – 90% mentioned

🚛 Transportation & Logistics (19 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Protection during transit – 95% mentioned
  • Moisture and dust sealing – 89% mentioned
  • Reusability – 76% mentioned

🪑 Furniture & Decorative Applications (10 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Rounded edge safety – 100% mentioned
  • Custom color options – 90% mentioned
  • Modern appearance – 100% mentioned

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