About Us — 杭州炬卡电器有限公司

Who We Are

A solar cold-chain specialist since 2015

杭州炬卡电器有限公司 was established in 2015. The company is dedicated to product development that combines solar application, internet-plus and new energy with refrigeration, and positions itself as a solution provider for new-energy, internet-enabled commercial mobile cold chain.

Our main products are solar freezers, solar refrigerators, solar ice makers, solar mobile internet ice-cream tricycles, electric ice-cream delivery tricycles, beer retail carts and other new-energy commercial cold-chain products in a wide variety of styles.

All production is exported. Our customers are mainly in countries and regions along the Belt and Road. By supplying solar products — and by helping partners set up their own local factories for retail and delivery refrigeration — we help these markets create employment, improve living quality and make greater use of clean energy.

Solar cold-chain demand is growing fast in exactly the markets where grid supply is weakest and sunshine is strongest. That is the market we build for.

Equipment & Capability

Advanced equipment for whole-process quality control

The company operates fully automatic laser cutting machines, punch presses, bending machines, an automatic dual-gun high-pressure foaming machine, a CACL high-precision dual-system filling machine and an INFICON high-sensitivity leak detector.

This equipment base is what makes reliable, consistent whole-process quality control possible — from sheet metal through foaming, refrigeration installation and leak testing.

Components for the refrigeration system and the control system are selected from dependable brands within the industry, then confirmed through severe-condition testing in our own laboratory. That is how we ensure stable performance across different regions and widely differing operating conditions.

Product Series

The widest range of specifications and series in the Chinese market

Cabinets are classified first by door construction. Understanding that split is the fastest way to find the right model.

Foam Door Cabinets

Single-door top-opening and double-door top-opening

Foam door freezers are classified as single-door top-opening or double-door top-opening chests.

Volume bands: 100 L, 150 L, 200 L, 250 L, 300 L for the compact series; up to 500 L and beyond for the larger series.
Both DC and AC versions can be produced on the same platform.
Complete units, SKD and CKD kits are all available.
Insulation thickness of 65 mm or 110 mm can be selected.
Models up to 350 L can be built as DC products; the whole series can be built as AC products.

Glass Door Cabinets

Curved glass door and flat glass door

Glass door cabinets are classified as curved glass door and flat glass door units, built for display and self-service retail.

Best-in-class cooling speed and cooling depth.
85 mm insulation build able to satisfy ST and T climate conditions.
Full-process in-house production, so small batch and fully individualised orders stay practical.
Optional LED lighting and light box, and a choice of external or built-in condenser.

Because we run every process ourselves, individual requirements are met quickly: cabinet colour, handle style, panel design, mechanical or electronic control, external or built-in condenser, LED lighting and light box.

Solar Direct-Drive Technology

Run straight from the panel — no battery needed

Our solar direct-drive series changes the way these products have traditionally been powered. Instead of requiring a battery simply to make the cabinet run, the new technology lets the photovoltaic panel supply the product directly.

The result is less battery wear, lower operating cost, and cheaper replacement when a battery is eventually needed.

Depending on the voltage situation of the application, products can be configured for 12 V / 24 V. Customers can adjust the configuration themselves to match their own power supply and usage scenario.

Four standard power architectures are available, from day-only solar through to a hybrid three-source design with mains priority — see the power scenarios on the home page.

Product Advantages

人无我有，人有我优 — what we have that others do not

The comparison below covers hardware build quality first, then the management and process standards behind it. More than thirty additional advantages sit behind these.

Hardware and build quality

Concealed door lock hook

The door lock is unique: the lock hook is not exposed. The appearance is high-end and the overall product image is clean.

Thicker shell and liner

Outer shell 0.4 mm and inner liner 0.32 mm, against 0.35 mm and 0.26 mm on most competing products.

Custom LG130 door frame

The door frame uses a specially customised LG130 low-temperature material, which effectively prevents cracking under large temperature differences between inside and outside.

All-metal compressor room

The compressor compartment is entirely metal — no calcium-plastic board and no cardboard — for better durability and flame resistance.

Metal side plate

The side plate of the compressor room cover is metal, giving better structural integrity and outlasting plastic housings. The power cord is not easily damaged when plugged and unplugged.

High-grade LED corn lamp

The interior light is a high-quality LED corn lamp, rated to last around ten years.

Denser condenser

The condenser tube is 6.0 mm in diameter, thicker than the 4.78 mm used by ordinary manufacturers. The BD/BC-208 carries 120 wires, thicker and denser, for better heat dissipation.

Pure white nylon castors

Castors are pure white nylon with no regrind content, making them considerably more durable.

16 A industrial plug

The plug is a 16 A industrial type, carrying a larger current without heating up or burning out.

Large aluminium controller housing

All compressor controllers use a large aluminium housing for better heat dissipation and long service life.

100 % copper motor coils

Compressor motors are guaranteed to use copper wire windings throughout.

Fan aimed at the controller

The fan blows directly onto the compressor controller, effectively lowering controller temperature and keeping the compressor stable.

Management and process standards

Stable foaming environment

A foaming room held year-round at 20–23 °C, ensuring consistency in the quality of the foam insulation.

Reliable instrument brands

Vacuum pumps, filling machines and leak detectors are dependable brands within the industry, safeguarding the refrigeration process.

Laboratory and constant-temperature test room

A reliable laboratory plus a pre-delivery constant-temperature test room: one confirms the accuracy of refrigeration parameters, the other confirms consistent performance by testing every unit under the same ambient conditions.

Separate process and quality departments

A dedicated process and quality assurance department maintains written process standards for every operation. Production strictly follows the process documents, and no product may be packed or warehoused without a confirmed pass from a quality inspector. Production stays with production; quality stays with quality.

Specific process commitments: before any pipe connection is made, both the condenser section and the evaporator section are purged with nitrogen gas to guarantee circuit cleanliness. The vacuum standard is a uniform 20 Pa or lower — units that do not reach it cannot be charged. Refrigeration testing follows detailed written standards covering probe placement and the test criteria for each ambient temperature. Finally, every unit is checked twice with the INFICON leak detector: once unpowered and once while running.