HW-S550 Printer

The HW-S550 is a semi-automatic solder paste printer from a China SMT machine manufacturer, built to deliver consistent solder paste printing in PCB assembly. An automatic squeegee moves left and right to deposit solder paste onto PCB pads, with printing accuracy of ±0.02 mm and machine repeatability of ±0.02 mm. It accepts three stencil frame sizes and handles substrates up to 250x330 mm, making it a practical and affordable first printing station for small and medium SMT production lines. In surface mount technology, paste deposition is the process that decides solder joint quality downstream, so a stable stencil printer helps electronics manufacturers raise first-pass yield before components ever reach the chip mounter. Operators also appreciate the simple PLC-based control and left/right squeegee travel, which shorten changeover time between products.

Key Features

• Automatic squeegee printing with speed adjustable from 0 to 100 mm/sec
• Printing accuracy of ±0.02 mm and machine repeatability of ±0.02 mm
• Three stencil frame sizes supported: 370x470 mm, 420x520 mm and 550x650 mm
• Handles substrates up to 250x330 mm with thickness from 0.2 mm to 2.0 mm
• Minimum pitch of 0.35 mm for fine-pitch PCB assembly
• Left/right movable worktable of 500x320 mm driven by a 60 W three-phase motor
• DVP-14MR PLC control for stable, repeatable printing cycles
• PCB outer or pin positioning for quick, precise board alignment
• Compact footprint of 900x900x1650 mm at only 250 kg
• Low-power 100 W design that fits beside any pick and place machine without special infrastructure

Technical Specifications

SMT Industry News

Market research firms continue to forecast steady growth for the global SMT equipment market through 2032, as electronics manufacturers expand capacity and raise automation levels in PCB assembly. At NEPCON Asia 2026 this October, the industry showcased next-generation SMT placement systems, advanced packaging solutions and autonomous material handling equipment, and once again emphasized solder paste printing as the critical first step of any SMT production line. For growing workshops, a semi-automatic stencil printer such as the HW-S550 is the most practical upgrade from hand printing: it keeps paste volume and alignment consistent board after board, which directly raises placement yield and first-pass rates at the pick and place stage. Since a large share of SMT assembly defects can be traced back to the printing step, upgrading this single station is often the fastest quality improvement a workshop can make. Operators switching between products will also value the three supported stencil formats, which let one printer serve several board designs without buying additional machines.

Applications

The HW-S550 fits the front of an SMT production line for small and medium-batch PCB assembly, including LED lighting boards, power supplies, consumer electronics, IoT modules and development prototypes. It pairs naturally with automatic PCB loaders and unloaders, chip mounters and reflow ovens from the same manufacturer to form a complete line. As a semi-automatic screen printer backed by an experienced China SMT machine manufacturer, it gives electronics workshops a low-cost, reliable entry into automated solder paste printing, with paste height and coverage staying uniform from the first board of a batch to the last.

Foreign Trade Sales: Mr. Sun
Phone · WhatsApp · WeChat: +86 18210740377
Email: zghwgc@gmail.com
Website: www.smthw.com
Factory Address: Building 21, Junding Science & Technology Park, Shiyin Village, Luquan District, Shijiazhuang, Hebei, China