Best 20-Socket Community Charging Station Manufacturer | Surabaya, Indonesia - CE OCPP Wanlin

Executive Summary: 20-Socket Community Charging Station for Global Buyers

What the first 90 days proved The WL-CS20 splits 20 sockets across two load groups, settles per-port billing daily, and keeps a whole estate charging under one OCPP connection. 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. Hard numbers from the trial and the landed margin landed at 36% after freight and duties 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

Case Study: Surabaya Condo Management Buyer Sourcing Success

Most distributors start with price. This one started with a complaint log. The quiet shift in the category is buyers moving from flat-rate power strips to metered, OCPP-connected stations.

After a 60-day pilot across three condo basements, Pham Duc Long selected Wanlin as their EV charging manufacturing partner. Two factors closed it: the test report matched the samples, and the answers arrived within a day.

• A 48-hour continuous-load rack cycles every station to catch relay and meter failures early
• RCD, surge and overload protection are function-tested on samples from every lot, not by design alone
• Firmware can be customized for tariff logic, load limits, display language and payment flows

The burned-socket shelf in the maintenance room had shrunk to zero after the old boards were swapped out.

Problem Analysis & Field Report: Why Global Buyers Need 20-Socket Community Charging Station

It started with one return and grew into a spreadsheet of them. A market cooperative found its charging revenue ran through one flat cash box with no record of who charged or how much.

Field case: A school district in Surabaya approved the WL-CS20 after a fault-injection test: shorting one port dropped only that port while the other nineteen kept charging. The district rolled the station across six campuses the following term.

Why it matters for global buyers:

• single-rail busbars melt when every socket draws at once
• the fix was twin load groups with per-port breakers
• daily settlement exports turn charging into an auditable revenue line

Wanlin EV Charging OEM & ODM Services for Global Distributors and Brands

Wanlin runs OEM and ODM programs for buyers who want their own charging station line without building a factory. Customization covers:

• Cosmetics: cabinet colors, logo printing, port labels and decal sets on existing tooling from 50 units
• Firmware: tariff logic, load caps, timer behavior, display language and payment flows
• Protocol layer: OCPP 1.6J builds pointed at buyer-specified CSMS endpoints, security profiles and custom DataTransfer messages
• Exclusive tooling: new enclosure molds and cable-path tuning for brands that need a design nobody else can copy
• Connected builds: 4G cloud dashboards and fleet portals under the buyer brand when a software layer is required

Product Introduction: Wanlin 20-Socket Community Charging Station

The shipping version keeps the same sealed gland plate and the same RCD wiring the field units earned.

Core Features:

• China-Based Manufacturing: Wanlin produces in Shenzhen with in-house SMT lines, enclosure and cable assembly, and burn-in racks that load-test and cycle every finished station before packing
• Certification Transparency: CE, RoHS and IEC 61851-1 documentation is provided per model, and OCPP 1.6J conformance logs plus metering accuracy files travel with the shipment so containers clear without surprises
• Tested Claims: meter accuracy, RCD trip time and enclosure sealing are verified on samples from every production lot, and the reports are recorded per batch
• Private Label Support: cabinet colors, logo, firmware, tariffs, packaging, manuals, decals and spare kits are customized for each program
• Global Shipping Experience: we pack for charging distributors, property developers, fleet operators and e-mobility buyers across Southeast Asia, the Middle East, Europe, North America and Africa

Technical Specifications

Application Scenarios for Global Market

Certified EV Charging Manufacturing for Global Markets

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:

• A 48-hour continuous-load rack cycles every station to catch relay and meter failures early
• RCD, surge and overload protection are function-tested on samples from every lot, not by design alone

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.

Why Choose Wanlin as Your EV Charging OEM Manufacturer

Put side by side with the alternatives the buyer had been using, the difference showed up in test time, not just features.

EV Charging OEM Process: From Inquiry to Shipment

The workflow below is the same one every Wanlin OEM order follows, from sample to dock. A standard charging station OEM project then follows 8 steps:

1. Tell Us Your Target Market - Southeast Asia, the Middle East, Europe, North America, Africa or Latin America; each market may require different certifications, socket standards, voltage classes and manual languages
2. Select a Model Line - our team recommends WL-series platforms for your channel and price band, or works from a reference unit you send
3. Verify Documentation - request certificate files, OCPP conformance logs and test reports for the exact model before you commit
4. Confirm Customization - cabinet colors, logo, firmware behavior, tariff logic, payment flows and packaging
5. Sample Evaluation - verify meter accuracy, load balancing and CSMS integration on real samples before scaling
6. Confirm Production - after specifications, commercial terms and OEM details are locked
7. Quality Inspection - lot samples are tested and every finished station passes hipot, trip-time and burn-in racks before packing
8. Shipment - cartons leave FOB, CIF or DDP according to the agreed logistics terms

Customer Testimonials

The quotes below come from follow-up calls after the first season of uptime data arrived.

• Somchai Prasert (EV Charging Station Distributor, Bangkok, Thailand): "We listed the same station under our house brand and the uptime held above 99%."
• Nguyen Hoang Minh (Charge Point Operator, Ho Chi Minh City, Vietnam): "The station we field-tested through the rainy season is the station we sell; our listing says IP54 and the field record proves it."
• Pham Duc Long (Condo Management Buyer, Surabaya, Indonesia): "The cabinet survived a monsoon season on an open shed wall. That story sold more units than our ads did."

Frequently Asked Questions

Q: Why two load groups instead of one?

A: If a fault or overload hits one group, the other ten sockets keep charging, and each group draws against its own feeder cap.

Q: Can we bill riders per kWh?

A: Yes, every socket meters consumption and the station exports daily settlement files for wallet or cash reconciliation.

Q: How many stations can one CSMS manage?

A: There is no fixed limit; each WL-CS20 registers as one charge point with 20 connectors over OCPP 1.6J.

Q: What is the installation footprint?

A: Twin cabinets bolt side by side on a 1.6m wall span or back to back on a pedestal frame.

Q: Can we start with one cabinet and expand later?

A: Yes, the twin-cabinet design ships as one group first, with the second cabinet adding on the same feeder.

Project Summary

Hard numbers from the trial By working directly with manufacturer Wanlin, the Condo Management Buyer team in Surabaya reached 36% 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

• Shenzhen HQ: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China