What Sells, and Where It Is Installed
The smart clothes airer has moved on from a hand crank. Electric lift, voice control, UV disinfection, and a drying function now sit in one balcony appliance, and it has become a real category. AVC reported about 4.5 million units sold in China in 2023, worth about RMB 5.5 billion, and penetration is still rising. Hotels, apartments, and dorms are a different business: shared wash-and-dry equipment in corridors and laundry rooms, usually with no fixed Wi-Fi, so remote monitoring and billing go over 4G/5G or NB-IoT.
Core Pain Points
At home: The airer usually reaches the phone or a gateway over Wi-Fi or Bluetooth, which is enough for remote control and a status check. The maker still needs that link for over-the-air updates, fault diagnosis, and a reading of how the product is used. On commercial sites: Washers and dryers in a shared laundry or a hotel linen room are scattered. Someone has to see run state, cycle count, and faults from afar, and the same link has to bill the cycle and flag a restock. There is no Wi-Fi to borrow, so cellular is the practical path.
Technical Standards and Terminology
Relevant standards include QB/T 5200, Electric Clothes Airers for Household and Similar Use, and GB 4706, Safety of Household and Similar Electrical Appliances. Common terms: Wi-Fi/BLE (the home link); 4G Cat.1/NB-IoT (commercial sites with no Wi-Fi); M2M (device-to-cloud communication); OTA (over-the-air update); IoT (Internet of Things). A commercial washer or dryer on 4G Cat.1 uses about 5 Mbps uplink, a heartbeat every 5–10 minutes, and 80–150 MB a month.
Who Builds It
The chain runs from airer makers (Hotata, Liangba, and Panpan) through shared-laundry operators (Haier Laundry, Panda Laundry, and Suxike) to the connectivity layer. Hotata and Liangba lead airer share. Haier Laundry and Panda Laundry cover campuses, residential compounds, and factories. One university put 180 shared washers and dryers in 15 dorm buildings. Over 4G they bill, report status, and raise fault alerts, and the maintenance headcount is about 50% smaller.
Where IoT Is Used
Home airers: Wi-Fi or Bluetooth joins the home network so the app can raise and lower the rack, switch the light, and start drying. Run data comes back for fault diagnosis and over-the-air updates.
Shared washers and dryers: Units report run state, cycle count, and fault codes over 4G/5G or NB-IoT, and the platform bills remotely, reminds staff to restock, and flags maintenance before a failure.
Hotels and apartments: Linen washers and dryers stay on the same network as laundry orders and energy management.
Where the Market Is Heading
Airers are being tied into smart-home and whole-house systems. Shared laundry is spreading from campuses into residential compounds, parks, and factories. Machines are being linked to water and electricity meters and to energy management. AI is starting to predict faults and to order the maintenance visits.
Summary
This category splits in two. The balcony airer can live on home Wi-Fi. The commercial washer and dryer cannot, and that is where a cellular link earns its place. SimtoLink supplies 4G/5G and NB-IoT SIM cards and communication modules for these machines, especially shared laundry, so they stay online for remote maintenance and billing.