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Active Wheelchairs

Nitrum

Sunrise Medical

The lightest rigid wheelchair in its class, precision-engineered to turn energy into motion. An aerospace-grade aluminium frame from 4.8kg, built to be personally tailored for handling, turning and propulsion efficiency.

From 4.8 kg
Lightest in its class
7020 aerospace aluminium
ShapeLoc heat-treated frame
One-piece caster link
Hollow forged, not welded
125 kg
Maximum user weight

Overview

Precision-engineered for effortless motion

Overview

Nitrum is built from patented ovalized frame tubing in aerospace-grade 7020 aluminium, heat-treated using Sunrise Medical's ShapeLoc technology. Instead of multiple welded parts, the caster link is a single hollow-forged component, stronger and lighter, and fully adjustable for precise handling.

Where it works

Everyday use: hand-welded into one complete frame for a stiffer, more efficient ride, with the least amount of effort needed to propel.

Active lifestyles: integrated LED lights on the caster arms let you see and be seen, with a battery that's removable for charging or to save weight.

Extensive customisation is available, from upholstery and frame colour to caster wheels and forks.

Who it's for

Built for users who prioritise weight and responsiveness above all else, from everyday wheelchair users to those wanting the lightest possible chair for an active lifestyle.

Maximum user weight of 125kg, with an everyday configuration starting from around 4.8kg.

Accessories and options

Configure it to fit you

A wide range of options to match your build, strength and lifestyle, chosen during your assessment.

Integrated LED caster lights
Adjustable armrests
Choice of footrests
Frame colour options
Cushion and upholstery choices
Wheel and tyre options

See it in use

Product videos

A closer look at the Nitrum from Sunrise Medical.

Nitrum Overview
Nitrum Overview
Nitrum In Use
Nitrum In Use

Common questions

Frequently asked questions

Can't find what you need? Get in touch.

Nitrum is built to order using a 3D configurator, so you can choose your seat sling, backrest, armrests, castors, wheels and colours. We'll confirm timescales for your build during assessment.

We're an approved supplier for Access to Work, NHS, local authorities and insurance companies. We can talk through funding routes during your assessment.

Yes, the chair comes with a manufacturer's warranty. We'll confirm the exact terms as part of your quote.

The one-piece caster link can be personally tailored for handling, turning and propulsion efficiency, and the chair is available in an extensive range of colours and upholstery to suit you.

Yes, we bring the chair to your assessment so you can try it in person before making any decision. There's no obligation to proceed.

Yes, we provide ongoing aftercare and support after delivery. Some servicing is covered under warranty, and some work falls outside it and is chargeable, we'll always tell you which applies before doing any work.

Full specification

Technical details

Frame material7020 aerospace-grade aluminium, ovalized tubing
Frame treatmentShapeLoc heat treatment, hand-welded
Everyday weightFrom approximately 4.8–5.2 kg
Maximum user weight125 kg
Total width320–500 mm
Caster linkOne-piece hollow forged component
LightingIntegrated LED lights on caster arms
AvailabilityBuilt to order, 3D configurator available
ManufactureSunrise Medical

Why use us

Clinically led, trusted nationwide

1,000+
Assessments completed
No cost
Free assessment, no obligation
750+
Chairs supplied nationwide
Chartered
Run by Physiotherapists

Ready to find the right chair?

Book a free assessment and try the Nitrum in person, with no obligation.

Book an assessment Call 0203 951 1783
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