The Netherlands‑based company J58 has developed the Ezer, a mechanical standing wheelchair designed for users who want both mobility and the ability to stand upright. Rather than relying on batteries or complex electronics, the Ezer uses a gas‑spring assisted mechanism for the sit‑to‑stand transition, and a belt‑transmission system that enables movement while in the standing position.
One of the core features is the instant transition between sitting and standing: with gas springs adjusted to the user’s weight, the user can move from seated to upright without delay. While standing, the wheelchair’s front‑wheel system expands the wheelbase thanks to a patented mechanism, improving stability in the upright mode. The product is adjustable for both height and weight‑distribution, allowing customization to the user’s body type and standing height preference.
According to J58, the fully mechanical design has several advantages: lower complexity, easier repair and maintenance, and no reliance on power sources. For example, there is the option to add motorized wheels later, but the basic model emphasizes manual, mechanical operation. The company also states that the Ezer is compliant with European medical‑device safety standards (CE marking) under general safety and performance requirements (GSPR).
J58 was founded in 2022 and has already earned multiple start‑up awards in the Netherlands for innovation in mobility devices. Their stated goal is to bring the Ezer to a global market via a network of dealers and distributors.
From a user‑perspective, the capability to “move while standing” opens up social and physical benefits: easier eye‑level conversations, more accessibility at counters, workstations or social settings, and potential rehabilitation advantages for circulation and posture. However, the website does not list public price points for the Ezer, and availability appears to depend on local dealer contacts and demo appointments.
In summary, the Ezer by J58 offers a distinct approach compared to typical powered standing wheelchairs — focusing on mechanical simplicity, standing mobility and adaptability. For users looking for an alternative to battery‑driven systems, this model presents a noteworthy option.
Source: J58


