​​90° External Joint for 28mm Lean Tube​​

90° external joint for 28mm lean tubes. Adjustable ±45° rotation, aluminum alloy clamp design. Ideal for modular frames, carts, and shelving.

Customized services

Aluminum Factory

Spot goods

1-hour reply

Multiple Payment

Flexible Packaging

Description

This 90° external joint is an adjustable connector designed for 28mm lean tubes, enabling flexible 90° angular connections in modular structures. Ideal for constructing workstations, carts, shelving, and logistics racks, it supports dynamic adjustments post-installation with a ±45° rotation range. Crafted from lightweight aluminum alloy, the joint ensures corrosion resistance and durability in industrial environments. Its external clamp design secures tubes without internal inserts, simplifying assembly while maintaining structural stability.

  1. Adjustable Angle: Allows ±45° rotation after installation for adaptable framework configurations.
  2. External Clamp Design: Compatible with 28mm lean tubes, providing tool-free tube securing without internal inserts.
  3. Robust Material: Aluminum alloy construction with corrosion-resistant finish for long-term use under dynamic loads.
  4. Easy Installation: Fastens with M6 hex screws (8.8-grade strength) for quick, tool-driven assembly.
  5. High Load Capacity: Reinforced structure supports heavy loads in industrial applications like assembly lines and storage systems.

Additional information

Material

Aluminum Alloy

Surface

Anodic Oxidation

Weight

130 g

Color

Silver & Customized

OEM/ODM

Support

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Product Complete
Life Cycle Service

How we support your aluminum engineering from stock check to global rapid dispatch.

01

Series Selection & Stock Check

Access our regular inventory of standard 2020-100100 series profiles. Real-time availability and technical drawings within 1 hour. 100% compatible with international T-slot standards.

Obj: Rapid stock commitment.
02

Precision Cutting & Processing

Free high-precision cut-to-length services using industrial CNC sawing lines (tolerance within ±0.1mm). Pre-processed drilling, tapping, and counter-boring ready for onsite installation.

Obj: Ready for mechanical assembly.
03

Rapid Fulfillment & Shipping

Standard components and accessories are packed and dispatched from our warehouse within 48 hours. Heavy-duty, multi-layer sea-worthy packaging protects anodized finishes from scratches.

Obj: Minimized lead times.
04

Accessory & Material Support

One-stop sourcing for over 2,000+ standard accessories (connectors, fasteners, floor elements). Every shipment comes with Material Test Certificates (MTC) for 6063-T5 alloy verification.

Obj: Certified material reliability.

FAQ

We are an aluminum profile manufacturer with our own production base. This allows us to control every step in processing, providing stable quality, competitive factory-direct pricing, and reliable delivery time.

Standard Series: No MOQ. For our 200+ standard profiles and accessories in stock, we support orders starting from 1 piece for immediate dispatch.

Custom Projects: We prioritize large-scale industrial production (MOQ 500kg-1,000kg). As our facility is optimized for high-volume standardized output, we generally do not accept small-scale custom orders.

Stock Items: Shipped within 24–48 hours.

Custom Production: Mold development (7–10 working days) + Mass production (10–12 working days).

Our cutting tolerance can reach ±0.05 mm with CNC machining. We also provide drilling, tapping, chamfering, and deburring to meet your assembly requirements.

Yes, we provide one-stop procurement including: Brackets, T-bolts, fasteners, hinges, and decorative parts. This helps you build full structures without sourcing from multiple suppliers.

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