{"id":4671,"date":"2025-04-08T13:49:35","date_gmt":"2025-04-08T12:49:35","guid":{"rendered":"https:\/\/streetcrane.development-visionsharp.co.uk\/?page_id=4671"},"modified":"2026-07-23T10:09:07","modified_gmt":"2026-07-23T14:09:07","slug":"semi-portal-cranes","status":"publish","type":"page","link":"https:\/\/streetcrane.com\/en-us\/cranes\/gantry-cranes\/semi-portal-cranes\/","title":{"rendered":"Semi-Gantry Cranes"},"content":{"rendered":"\r\n
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Semi-Gantry Cranes<\/h1>\r\n
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Bespoke semi-gantry crane systems from 1t to 200t<\/p> <\/div>\r\n

\r\n Engineered in Britain. Stocked, supplied and supported in the USA <\/p>\r\n

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Discover the Power of Street Semi-Gantry Cranes<\/p>\r\n <\/div>\r\n

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A semi-gantry crane gives your site a practical lifting route when your main overhead crane is creating bottlenecks, your floor space must stay clear, or your building structure cannot support a conventional overhead crane on both sides.<\/p>\n

Street Crane designs and manufactures bespoke semi-gantry crane systems for UK industrial sites where structure, space and workflow all need careful consideration. We work with end users, consultants and trade partners to specify single or double girder systems around your load, span, hook height, duty cycle, travel path and long-term performance needs.<\/p>\n

Depending on capacity, duty and configuration, your crane can be specified with Street ZX electric wire rope hoists<\/a>, VX open winch hoists<\/a> or LX electric chain hoists<\/a> to suit your lifting requirements.<\/p>\n

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Where Semi-Gantry Cranes Are Used<\/h2>\n <\/div>\n
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\n Manufacturing & Assembly<\/span>\n
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Semi-gantry cranes are useful in production bays where teams need dedicated lifting along one side of a line or around a defined workstation area. They can reduce waiting time for the main overhead crane and help operators move components more predictably through local assembly processes.<\/div>\n <\/div>\n
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\n Automotive & General Engineering<\/span>\n
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In manufacturing environments with busy production cells, a semi-gantry crane can provide localised lifting beneath or near a larger overhead crane, subject to clearance and layout checks. This can help reduce bottlenecks where multiple teams would otherwise compete for the same main crane.<\/div>\n <\/div>\n
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\n Steel Fabrication & Heavy Machining<\/span>\n
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Semi-gantry cranes can serve side bays, machining areas and fabrication zones where long or heavy components need controlled movement close to a wall or column line. Where long loads need to pass a crane leg, Street can assess torsion box and side-running hoist arrangements.<\/div>\n <\/div>\n
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\n Warehousing, Stores & Logistics Zones<\/span>\n
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Where a building cannot easily accept a full overhead crane, or where a gantry crane would obstruct access routes, a semi-gantry crane can provide a targeted lifting path for stock handling, loading areas or material movement along one side of the facility.<\/div>\n <\/div>\n
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\n Outdoor & Stockyard Handling<\/span>\n
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Street gantry and semi-gantry cranes can be engineered for outdoor or unsupported applications, including stockyard handling where a building structure is not available or not suitable. Environmental conditions, exposure and protection requirements are reviewed during specification.<\/div>\n <\/div>\n <\/div>\n
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Semi-Gantry Crane Configurations & Travel Options<\/h2>\n <\/div>\n <\/div>\n
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Single Girder Semi-Gantry Cranes<\/h3>\n
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Single girder semi-gantry cranes are typically used where the load, span and duty cycle allow a lighter and more efficient structure. They are well suited to many light-to-medium industrial duties where local hook coverage, controlled movement and efficient use of space are the priorities.<\/p>\n

A single girder arrangement can help optimise weight and structure, especially where headroom and building geometry need close attention. Depending on capacity, duty and configuration, the crane can be specified with suitable Street hoisting equipment, including ZX electric wire rope hoists or LX electric chain hoists where appropriate.<\/p>\n

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Double Girder Semi-Gantry Cranes<\/h3>\n
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Double girder semi-gantry cranes are selected for heavier loads, larger spans or more demanding duty requirements. They can provide greater stability and, depending on the geometry of the building and crane, may support a higher top hook position than a single girder arrangement.<\/p>\n

For heavier industrial applications, Street can specify suitable hoist technology such as ZX wire rope hoists or VX open winch hoists, selected around capacity, duty, control requirement and maintainability.<\/p>\n

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Tracked Floor Travel<\/h3>\n
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A traditional tracked semi-gantry crane uses a floor-mounted rail on the lower side of the crane. This is a robust solution for heavier capacities and repeatable linear travel. It suits applications where the travel path can be clearly defined and protected within the working area.<\/p>\n

The floor rail, foundations and fixings must be assessed as part of the crane specification. Street Crane considers wheel loads, floor condition, rail alignment, access routes and how the crane will interact with the surrounding operation.<\/p>\n

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Rail-less Floor Travel<\/h3>\n
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For suitable smaller-capacity applications, Street offers a rail-less semi-gantry crane option up to 15 tonnes depending on span. This design uses polyurethane-tyred wheels running directly on the factory floor, guided at high level by a roller guide system.<\/p>\n

The main advantage is floor freedom. Removing the lower floor rail can reduce trip hazards, avoid rail debris issues and protect access for trolleys, forklifts or other wheeled factory equipment. This option is application-specific and depends on capacity, span, floor condition, travel route and operating environment.<\/p>\n

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Semi-Gantry Crane Configurations & Travel Options<\/h2>\n <\/div>\n
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Single Girder Semi-Gantry Cranes<\/h3>\n
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Single girder semi-gantry cranes are typically used where the load, span and duty cycle allow a lighter and more efficient structure. They are well suited to many light-to-medium industrial duties where local hook coverage, controlled movement and efficient use of space are the priorities.<\/p>\n

A single girder arrangement can help optimise weight and structure, especially where headroom and building geometry need close attention. Depending on capacity, duty and configuration, the crane can be specified with suitable Street hoisting equipment, including ZX electric wire rope hoists or LX electric chain hoists where appropriate.<\/p>\n

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Double Girder Semi-Gantry Cranes<\/h3>\n
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Double girder semi-gantry cranes are selected for heavier loads, larger spans or more demanding duty requirements. They can provide greater stability and, depending on the geometry of the building and crane, may support a higher top hook position than a single girder arrangement.<\/p>\n

For heavier industrial applications, Street can specify suitable hoist technology such as ZX wire rope hoists or VX open winch hoists, selected around capacity, duty, control requirement and maintainability.<\/p>\n

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Tracked Floor Travel<\/h3>\n
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A traditional tracked semi-gantry crane uses a floor-mounted rail on the lower side of the crane. This is a robust solution for heavier capacities and repeatable linear travel. It suits applications where the travel path can be clearly defined and protected within the working area.<\/p>\n

The floor rail, foundations and fixings must be assessed as part of the crane specification. Street Crane considers wheel loads, floor condition, rail alignment, access routes and how the crane will interact with the surrounding operation.<\/p>\n

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Rail-less Floor Travel<\/h3>\n
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For suitable smaller-capacity applications, Street offers a rail-less semi-gantry crane option up to 15 tonnes depending on span. This design uses polyurethane-tyred wheels running directly on the factory floor, guided at high level by a roller guide system.<\/p>\n

The main advantage is floor freedom. Removing the lower floor rail can reduce trip hazards, avoid rail debris issues and protect access for trolleys, forklifts or other wheeled factory equipment. This option is application-specific and depends on capacity, span, floor condition, travel route and operating environment.<\/p>\n

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Why Choose a Street Semi-Gantry Crane?<\/h2>\n <\/div>\n <\/div>\n
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A semi-gantry crane is not just a lifting product. It is a structural and operational decision that affects workflow, safety, access and long-term productivity.<\/p>\n

Street Crane helps you make that decision with engineering discipline. We assess the capacity, span, hook height, duty cycle, travel path, floor condition and supporting structure before recommending a configuration. Where one side of the crane can be supported at high level and the other at floor level, we can help you use that geometry intelligently, without forcing your site into a full overhead or full gantry arrangement where it is not the best fit.<\/p>\n

Our modular, finite element optimised structures are developed to balance strength, stability and efficient weight. Where suitable, rail-less semi-gantry cranes can reduce floor obstruction for smaller-capacity duties. Where higher duty or heavier loads are involved, we match the crane structure and hoist technology to the realities of your operation.<\/p>\n

As a family-owned UK engineering business with nearly 80 years of lifting experience, we focus on practical guidance, long-term reliability and accountability. We want your crane to work safely, smoothly and maintainably, not just on the day it is installed, but throughout its working life.<\/p>\n

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Why Choose a Street Semi-Gantry Crane?<\/h2>\n <\/div>\n
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A semi-gantry crane is not just a lifting product. It is a structural and operational decision that affects workflow, safety, access and long-term productivity.<\/p>\n

Street Crane helps you make that decision with engineering discipline. We assess the capacity, span, hook height, duty cycle, travel path, floor condition and supporting structure before recommending a configuration. Where one side of the crane can be supported at high level and the other at floor level, we can help you use that geometry intelligently, without forcing your site into a full overhead or full gantry arrangement where it is not the best fit.<\/p>\n

Our modular, finite element optimised structures are developed to balance strength, stability and efficient weight. Where suitable, rail-less semi-gantry cranes can reduce floor obstruction for smaller-capacity duties. Where higher duty or heavier loads are involved, we match the crane structure and hoist technology to the realities of your operation.<\/p>\n

As a family-owned UK engineering business with nearly 80 years of lifting experience, we focus on practical guidance, long-term reliability and accountability. We want your crane to work safely, smoothly and maintainably, not just on the day it is installed, but throughout its working life.<\/p>\n

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Frequently Asked Questions About Semi-Gantry Cranes<\/h3>\r\n
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When should you choose a semi-gantry crane?<\/p>\r\n

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A semi-gantry crane is worth considering when your main overhead crane is creating bottlenecks, your production teams need dedicated local lifting, or your building cannot support a conventional overhead crane on both sides.<\/p>\n

It can also be useful when you need to protect central floor space for forklifts, pedestrian routes, machinery or material movement. Street Crane engineers will assess your capacity, span, hook height, duty cycle, support structure, floor condition and travel path before confirming whether a semi-gantry crane is the right option.<\/p>\n

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Can a semi-gantry crane work beneath a main overhead crane?<\/p>\r\n

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It can be engineered to do so in suitable layouts, but it must be assessed carefully. Clearances, hook paths, long travel routes, pendant or radio control arrangements, power feeds and operating procedures all need to be considered. The aim is to provide localised hook coverage without creating interference with the primary overhead crane.<\/p>\n

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What is the difference between a semi-gantry crane and a gantry crane?<\/p>\r\n

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A Gantry crane is supported on floor-level legs on both sides. A semi-gantry crane uses floor-level support on one side only, with the other side supported at high level.<\/p>\n

This makes a semi-gantry crane useful where one side of your building or support structure can take the imposed crane loads, but the other side needs floor-level support. It can reduce floor obstruction compared with a full gantry arrangement while still giving you a dedicated lifting path.<\/p>\n

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Can a semi-gantry crane be installed in an existing building?<\/p>\r\n

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Yes, where the building and floor conditions are suitable. Existing buildings often need careful review because one side of the crane is supported at high level. The columns, wall steelwork or supporting structure must be capable of accepting the imposed loads and lateral forces from the crane.<\/p>\n

Street Crane will assess the building interface, floor-level travel route, clearances, wheel loads, hook coverage and any existing equipment before recommending a semi-gantry configuration.<\/p>\n

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Which hoist can be used on a semi-gantry crane?<\/p>\r\n

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Hoist selection depends on capacity, duty and configuration. Depending on the application, your semi-gantry crane can be specified with Street ZX electric wire rope hoists, VX open winch hoists or LX electric chain hoists.<\/p>\n

ZX hoists suit many industrial lifting applications where reliability, control and maintainability are important. VX open winch hoists support heavier-duty applications where robust construction and accessible maintenance are required. LX electric chain hoists can be appropriate for lighter-duty lifting where compact equipment is needed.<\/p>\n

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How often does a semi-gantry crane need to be inspected?<\/p>\r\n

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In the UK, semi-gantry cranes fall under LOLER requirements for lifting equipment. Thorough examination intervals are typically every 12 months for lifting equipment, or every 6 months for equipment used to lift people and for lifting accessories, unless a competent person sets a different written examination scheme.<\/p>\n

Inspection frequency can also be affected by duty, environment, age, condition and operating risk. Street Crane can support your long-term inspection, service and maintenance planning.<\/p>\n

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Get Started Today<\/h3>

Have any questions or want a quote please contact us<\/p>

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\r\n +18645894152<\/a>\r\n
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\r\n usasales@streetcrane.com <\/a>\r\n
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