SHENZHEN, China – August 10, 2026 — HSTECH, a trusted manufacturer of automated PCB soldering solutions, today officially unveiled its new compact HS-WS320 benchtop selective soldering machine, designed to deliver stable, repeatable through-hole soldering performance for small-batch production, NPI prototyping, and high-mix electronics manufacturing lines.

As miniaturized PCBs and mixed SMT/THT assemblies become mainstream across automotive, medical, consumer electronics and industrial control sectors, manufacturers face pain points including bulky traditional selective soldering equipment, unstable tin wave control, complex programming and high operation costs. The HS-WS320 addresses all these challenges with a desktop compact design, high-precision motion system and intelligent temperature control, offering an affordable offline selective wave soldering alternative for labs, small factories and R&D workshops.

The HS-WS320 adopts a precise XYZ three-axis motion framework paired with a mechanical pump-driven stainless steel solder pot. It generates stable tin waves via interchangeable nozzles, enabling targeted local soldering on through-hole components without damaging adjacent SMD parts. Unlike full wave soldering that wastes tin and risks bridging defects, this benchtop model only applies molten solder to required solder points, cutting material waste and rework rates significantly.

With overall dimensions of 516585800mm and a total weight of only 85kg, the HS-WS320 fits easily on standard workbenches, eliminating the need for dedicated production floor space required by large inline selective soldering machines. It supports PCB sizes up to 300*200mm, compatible with board thickness from 0.8mm to 3mm, and handles component heights of 100mm on the top side and 50mm on the bottom.

• 5KG capacity stainless steel solder pot with 1500W heating power
• Wide temperature range from room temperature to 400°C, with 0–550°C adjustable control via PID+SSR dual closed-loop regulation
• Interchangeable wave nozzles ranging from 2.5mm to 20mm to match different pad sizes
• Mechanical pump ensures consistent tin wave height for uniform solder joints, minimizing dross and oxidation

• XY axes driven by stepper motors and timing belts; Z axis equipped with closed-loop motor and lead screw for micron-level positioning accuracy
• Intuitive handheld teach pendant for manual point-to-point programming, no complicated PC software required
• Massive local storage: supports 1,000 sets of processing programs, single file stores up to 100,000 soldering points (3M file capacity)
• Offline editing function allows engineers to edit recipes without occupying the machine during production

Running on standard 220V 50–60Hz power supply with total rated power of 300W, the machine features fully automatic operation mode. Operators can complete board clamping, program calling and one-click soldering within minutes. It works perfectly for lead-free and tin-lead solder alloys, covering relays, connectors, power module through-hole soldering tasks.

“The HS-WS320 fills the market gap for entry-level benchtop selective soldering equipment," said HSTECH Product Director. “Many small electronics manufacturers and R&D labs cannot afford large industrial selective wave soldering systems, yet they still demand reliable THT soldering quality for prototypes and low-volume orders. Our desktop model balances precision, cost and flexibility, ideal for automotive electronics, medical device prototyping, household appliance control boards and communication module production."

Industry research shows the global benchtop selective soldering machine market maintains steady annual growth, driven by surging demand for flexible small-batch manufacturing and new product introduction workflows. HSTECH’s HS-WS320 enriches the brand’s soldering automation portfolio, complementing its full-automatic soldering robot lineup to provide one-stop soldering solutions for customers of all production scales.

The HS-WS320 benchtop selective soldering machine is available for global order immediately, with full technical documentation, factory training and 12-month after-sales warranty included. HSTECH will host live machine demonstrations at upcoming NEPCON Asia exhibitions, inviting industry visitors to test its soldering performance on site.