How we know: Swiss Post's own "ten facts" release of May 11, 2023, in English and German, and a same-day article on Logistikpunkt, Swiss Post's own logistics site. Neither the hospital nor the City of Zurich had published figures of its own by then. That's why this piece carries a Vendor claim label.
Healthcare operationsCase study
Zurich's Triemli hospital put four delivery robots on the night shift. Here's what their supplier says they do.
Swiss Post supplies the robots as a service to the city-owned hospital. They haul supply carts from the basement to the floors while the corridors are empty, Swiss Post says. Every number so far comes from Swiss Post.
ZURICH, May 2023 — Stadtspital Zürich, the hospital group owned by the City of Zurich, has had four autonomous robots moving supplies at night at its Triemli site since early this year. Here's what changed for the hospital's logistics team, what it cost, and what went wrong.
Cost and outcome (as of May 2023)
- Fleet: Four Swiss Post indoor robots at Triemli since early February 2023. (Logistikpunkt / Swiss Post)
- Deliveries so far: About 1,500 at Triemli. (Logistikpunkt / Swiss Post)
- Planned volume: About 8,500 carts a year once fully built out. (Logistikpunkt / Swiss Post)
- Claimed result: Order-to-delivery time cut by one day. (Logistikpunkt / Swiss Post)
- Load: Up to 453 kg per trip; about 850 kg a day per robot. (Swiss Post, archived)
- Cost: Not disclosed.
What the robots do
Swiss Post says the robots run between the logistics platform in the basement and the floors of two buildings: the main building, which houses the outpatient clinics, and the ward block. Together the two have 34 floors, by Swiss Post's count. In the first phase, the robots carry medical consumables and waste containers. Linen comes later, Swiss Post says.
They load and unload carts on their own at the central store and at the destination. They find their way with laser sensors and a Wi-Fi link. Added control modules let them call and ride the lifts without a person pressing buttons.
Swiss Post's release, styled in German as "ten facts" about the robot it nicknames "Trapi," adds detail. A shift starts just after 7 p.m. A robot can run up to 10 hours on one battery charge. Each one weighs about 100 kg and moves about 850 kg of goods a day. By May, the fleet had covered about 60 km.
Why nights
Running at night is the whole design. A hospital's lifts and corridors are crowded during the day with patients, visitors, beds and staff. Moving bulk supplies after hours keeps that traffic off the lifts. Swiss Post says it frees logistics staff from pushing heavy carts.
The claimed time saving follows from that. If supplies ordered during the day are on the floor by morning, staff don't wait for a daytime delivery round. Swiss Post puts the gain at one day from order to delivery. It hasn't published the before-and-after measurements behind that figure.
Who's behind it
Swiss Post, the state-owned postal company, sells hospital logistics as a business line and supplies the robots to business customers as a service. Triemli isn't its first site. The hospital in Nyon and Zurich's Schulthess Klinik already use the robots, and Logistikpunkt says they have logged more than 26,000 deliveries between them.
"With the indoor robots, we support our customers' hospital logistics and relieve hospital staff," said Daniel Vögeli, head of industry solutions at Swiss Post, quoted in the Logistikpunkt article (our translation).
Neither Swiss Post nor the hospital has named the company that builds the robots.
What we'd want to see
A supplier's launch numbers are a starting point, not a result. For a hospital operator weighing the same move, the useful figures are the ones the hospital itself would report: how often a robot stalls or needs rescue, how many night trips fail at a lift, what the service costs per delivery, and whether daytime staff hours actually came down or simply moved to other work. None of those were public in May 2023.
What went wrong
- No independent numbers. Every figure here comes from Swiss Post, which supplies the robots.
- No price. The service price was not published.
- Partial build-out. The 8,500-carts-a-year figure is a target, not a result; linen transport hadn't started.
- What we don't know yet: who makes the robots, how often they need a person to step in, and what the hospital pays.
Our follow-up question for Stadtspital Zürich
What does the robot service cost per year, and how many staff hours has it actually saved on the day shift?
Sources
- Swiss Post (Daniela Waser), ““Trapi” the hospital robot,” May 11, 2023. post.ch (returned 404 on Oct. 25, 2026; no archived copy found)
- Swiss Post, “Zehn Fakten über «Trapi», – den vielfältigen Spitalroboter,” May 11, 2023 (German). post.ch (returned 404 on Oct. 25, 2026). Archived copy, captured Dec. 7, 2023: web.archive.org
- Logistikpunkt (Swiss Post), “Roboter entlasten Spitalpersonal,” May 11, 2023 (German). logistikpunkt.ch
© 2026 Real World Wire. Written October 25, 2026.