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What changed for this buyer The WL-TK3 feeds 48V or 60V DC through multi-stage curves for lead-acid and lithium packs, with heavy-duty sockets and per-port fusing on an IP54 pedestal. Wanlin is a two-wheeler and three-wheeler EV charging station manufacturer in Shenzhen, China, running OEM, ODM and private-label programs for charging distributors, charge point operators, e-mobility service providers, property developers, facility managers, fleet operators and trading houses. The numbers that mattered which translated into a 39% gross margin on the first container for importers who source factory-direct, with per-model CE / RoHS / IEC 61851 documentation, OCPP 1.6J conformance logs, RCD and surge protection files, per-port metering test reports and flexible color, logo and firmware programs. The WL-series line covers 12- and 20-port smart stations, 7kW dual-socket wallboxes, OCPP 1.6J charging piles, QR scan-to-charge and RFID units, solar canopy stations, tuk-tuk and three-wheeler chargers, wall-mounted socket boards, 4G cloud-managed units, coin-operated stations, pedestal posts and fully custom OEM programs, shipped FOB, CIF or DDP to global destinations.
Published by Wanlin | Last updated: September 05, 2026 | Expertise: two-wheeler and three-wheeler EV charging station OEM and ODM manufacturing for global markets
The first message asked for a catalog. The real question surfaced two weeks later. The margin squeeze in the category pushes buyers toward factory-direct programs with type-test evidence.
Once the field units logged 5,000 charging sessions, Ahmad Faizal selected Wanlin as their EV charging manufacturing partner. The buyer admitted the deciding factor was a supplier who answered protocol questions in hours, not weeks.
At the condo gate, a rider scanned the QR, watched the socket lock, and plugged in without touching an attendant.
The failure was intermittent, which made it expensive to ignore. A rank manager measured billing disputes every week because flat-rate overnight fees ignored how empty each battery actually was.
Field case: A tuk-tuk rank in Chonburi replaced scooter chargers with the WL-TK3 after inlet cables charred on overnight loads. The multi-stage charge curve and per-socket fuses passed a municipal safety inspection, and the rank operator converted a weekly dispute log into a 39% margin on per-kWh billing.
Why it matters for global buyers:
Wanlin runs OEM and ODM programs for buyers who want their own charging station line without building a factory. Customization covers:
The production version carries the same OCPP stack the pilot units earned, so what the buyer validated is what ships.
Core Features:
| Parameter | Wanlin Specification |
|---|---|
| Output | 48V, 60V or 72V DC configurable |
| Charging Curve | multi-stage curve for lead-acid and lithium packs |
| Ports | 3 heavy-duty sockets with per-port meters |
| Safety | per-port fuse, overheat sensor and fire-retardant cable |
| Housing | IP54 steel pedestal with IK10 rating |
| Billing | per-kWh metering with QR or coin options |
| Display | port status LEDs and kWh counter per socket |
| Installation | pedestal mount with anchor bolts and cable trench entry |
| Application | Model | How It Helps the User |
|---|---|---|
| Tuk-tuk rank charging post | WL-TK3 | Drivers pay per kWh instead of flat overnight fees |
| Rickshaw co-op yard | WL-TK3 | Heavy-duty sockets match the pack inlet without adapters |
| Market loading zone | WL-TK3 | Cargo three-wheelers top up between loads on metered sockets |
| Temple parking area | WL-TK3 | Quiet overnight charging with auto cut-off at full charge |
| School gate stand | WL-TK3 | Parent three-wheelers charge safely behind per-port fuses |
Buyers who ship containers of charging stations need more than a price list. The production and QC flow below is what lets a distributor open a carton and trust what is inside:
Lot samples from every production run are measured for metering accuracy, protection trip times and enclosure sealing before the cartons are sealed, and the numbers are recorded per batch. A buyer can request those records with any order.
The comparison table below is based on the buyer's own bench notes, not our marketing claims.
| Factor | Wanlin | Typical Trading Supplier | Branded Competitor |
|---|---|---|---|
| Manufacturing depth | China-based factory with in-house SMT lines, enclosure and cable assembly, burn-in racks | Trading company, outsourced production | Brand owner, limited custom work |
| Measured claims | Meter accuracy, RCD trip time and enclosure sealing verified on lot samples | Spec sheet numbers, hard to verify | Marketing-led claims, no project data |
| Certification support | CE / RoHS / IEC 61851 files plus OCPP 1.6J conformance logs per model | Incomplete documents, customs risk | Brand-level only, no per-order files |
| Customization | Colors, logo, firmware, tariff logic, packaging from low MOQ | Stock models only | Fixed SKUs, no private label |
| Price (factory direct) | Tiered factory pricing with volume discounts | Unpredictable markups | Premium brand pricing |
Here is the step-by-step path the order took, with the checkpoints that kept quality on track. A standard charging station OEM project then follows 8 steps:
The notes below are from follow-up calls after the first containers sold through.
A: 48V, 60V or 72V DC configurations, matched to the pack the fleet actually runs.
A: Yes, multi-stage curves switch by profile so both chemistries charge correctly.
A: Three-wheeler packs draw heavy current for hours; three sockets keep the feeder, fuses and cables inside their ratings.
A: Per-kWh billing through QR wallet, or a coin option for cash ranks.
A: Fire-retardant cable, per-port fuses and an overheat sensor are standard.
The numbers that mattered By working directly with manufacturer Wanlin, the Solar Installation Contractor team in Chonburi reached 39% higher margins on its charging line while keeping rider tariffs competitive. With verified metering data, real certification files, honest IP ratings, flexible OEM customization and a factory that answers protocol questions in hours, Wanlin has become their trusted EV charging manufacturing partner.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com