Name: EVT290A‑H180L — Variable Angle Left‑Side Truss Hinge with 88 mm Body for 290 mm Systems
Brand: Evolve Truss
SKU: EVT290A-H180L
Price: 63.00 USD
Availability: InStock

EVT290S Truss Systems Knowledge Center

EVT290A-H180L Left-Side Variable-Angle Truss Hinge.
For Tip-Up Tower Erection and Adjustable 290 mm Truss Connections.

The EVT290A-H180L is a left-side variable-angle hinge for 290 mm square conical truss systems. Its 88 mm body allows a truss tower to be assembled horizontally and pivoted upright using the tip-up method. It can also form adjustable angular connections from 0 through 180 degrees. The L designation identifies the left-side orientation; confirm the required left/right hinge pairing for the specific truss system before installation.

Product Facts

Model / SKUEVT290A-H180L

Product TypeLeft-Side Variable-Angle Hinge

Hinge Range0 through 180 Degrees

Hinge Body Length88 mm / 3.46 in

MaterialAluminum Alloy EN AW-6061 T6

Component Weight1.48 lb / 0.67 kg

LeftHinge Orientation

0–180Degree Range

88 mmBody Length

2 SetsCoupler-Pins / R-Clips Included

1.48 lbComponent Weight

Product Overview

A Left-Side Hinge for Controlled Tower Pivoting and Adjustable Angles.

The H180L provides a hinged connection between compatible truss sections. In ground-support use, it supports the tip-up method: assemble the tower horizontally, then pivot it into its erected position under the approved lifting plan. Its hinge action is not equivalent to a rigid corner block; static use requires the hinge position to be secured and the complete support, bracing, and guying arrangement to be reviewed.

Left-Side Orientation

The L suffix identifies a left-side hinge. Confirm correct left/right pairing before assembly.

Tip-Up Tower Erection

Allows a compatible tower to be assembled horizontally and pivoted upright as part of an approved ground-support procedure.

Variable Angle

Forms adjustable truss connections from 0 through 180 degrees when the complete system is suitable.

Rigid Position Required

When used in a static structure, the selected hinge position must be secured and reviewed as part of the complete system.

Application Uses

Support Controlled Truss Erection and Custom Angular Connections.

The EVT290A-H180L is intended for compatible truss ground-support systems and angular connections requiring a left-side variable hinge. Final component selection, erection procedure, lifting plan, restraint, and system capacity require project-specific review.

Tip-Up Tower Erection

Connect a tower to its base-side truss connection so it can be pivoted from horizontal to vertical under an approved procedure.

Ground-Support Systems

Use in compatible ground-support systems where a hinged erection point is required.

Custom Angular Connections

Create adjustable truss connections within the 0 through 180 degree hinge range.

Left/Right Hinge Pairs

Pair with the matching right-side hinge where the approved system requires both orientations.

Orientation Matters

L Means Left. Confirm the Complete Hinge Pair Before Assembly.

The H180L is specifically configured as the left-side unit. It may be paired with a corresponding right-side hinge depending on the approved system. Do not substitute orientation based only on physical fit; confirm the required hinge placement and all connection details before erecting the system.

Included Hardware

One Left-Side Hinge and Two Complete Coupler-Pin Sets.

The EVT290A-H180L includes one left-side variable-angle hinge, 2 coupler-pins, and 2 r-clips. Each coupler-pin and r-clip set secures one truss-side connection of the hinge. Confirm the current product package and all required system hardware before assembly.

1 Left-Side Hinge

Variable-angle hinge body with 88 mm body length.

2 Coupler-Pins

One coupler-pin secures each truss-side hinge connection.

2 R-Clips

One r-clip retains each included coupler-pin.

Complete Hardware Set

Includes the two coupler-pin and r-clip sets needed for the hinge's two truss-side connections.

Technical Reference

EVT290A-H180L Specifications.

Identification

Product Details

Model / SKUEVT290A-H180L

Product TypeLeft-Side Variable-Angle Hinge

Weight1.48 lb / 0.67 kg

Hinge Range

Movement and Size

Angle Range0 through 180 Degrees

Hinge Body Length88 mm / 3.46 in

OrientationLeft Side

Construction

Material and Hardware

MaterialAluminum Alloy EN AW-6061 T6

FinishBrushed Aluminum

Included HardwareHinge, 2 Coupler-Pins, 2 R-Clips

Compatibility

System Fit

Primary SystemsEVT290I, EVT290T, EVT290S

Listed CompatibilityF34 and Compatible 290 mm Square Truss

System Compatibility

EVT290S, F34, and Compatible 290 mm Square Truss Systems.

The H180L is designed for compatible EVT290I, EVT290T, EVT290S, and F34-format systems. Physical fit alone does not establish equivalent capacity or a safe erection procedure. Confirm receiver spacing, coupler details, hinge orientation, coupler-pins, r-clips, restraint, and the complete support plan before lifting.

Assembly and Erection

Confirm the Hinge Pair and Erection Plan Before Tower Movement.

01 — Confirm Orientation

Confirm the left-side H180L is the required component and identify any matching right-side hinge requirement.

02 — Inspect Hardware

Inspect the hinge pin, leaves, 2 coupler-pins, and 2 r-clips for wear, damage, or deformation.

03 — Install Connections

Install both included coupler-pins and their r-clips correctly and fully.

04 — Confirm Erection Plan

Confirm lifting method, restraint, bracing, guying, personnel, and exclusion controls before pivoting a tower.

05 — Secure Static Position

Once erected, secure the hinge position and confirm the complete static structure before loading.

Safety and Engineering

A Hinge Is Not a Rigid Corner Block. Secure the Final Position.

The H180L is load-bearing during the erection phase but behaves differently from a rigid corner block in a static structure. It does not independently establish a tower height, load rating, bracing plan, or support arrangement. A licensed professional engineer must review structures and uses involving this component.

Secure the hinge position when used in a static structure and confirm complete bracing and guying.

Inspect the hinge pin, leaves, coupler-pins, and r-clips before every use.

Ensure both included coupler-pins and r-clips are fully engaged before lifting or loading.

Do not exceed the capacity of the complete truss system.

Have the complete system reviewed by a licensed professional engineer.

Confirm Current Documentation Before Ordering or Installing

Confirm current manufacturer drawings, instructions, included hardware, left/right orientation, and system requirements before ordering or installing the EVT290A-H180L. Tower erection, ground-support systems, public-facing structures, suspended loads, and other load-bearing uses require project-specific review by qualified rigging and engineering personnel before use.

Product Questions

EVT290A-H180L Frequently Asked Questions.

What does the L in H180L mean?

The L identifies this as the left-side hinge orientation. Confirm whether the approved system also requires a corresponding right-side hinge.

What hardware is included?

It includes 1 hinge, 2 coupler-pins, and 2 r-clips — one coupler-pin and r-clip set for each truss-side hinge connection.

What is the hinge used for?

It supports tip-up tower erection in compatible ground-support systems and can form adjustable truss connections from 0 through 180 degrees.

Can the hinge stay in a static structure?

It can be used in a static structure only when its position is secured and the complete support, restraint, bracing, guying, and engineering requirements have been confirmed.

Need a Left-Side Hinge for a 290 mm Truss System?

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EVT290A-H180L

EVT290A-H180L — Variable Angle Hinge (Left Side) for 290mm Truss Tower Systems

EVT290A-H180L Left-Side Variable-Angle Truss Hinge.For Tip-Up Tower Erection and Adjustable 290 mm Truss Connections.