STP-550
Ren Thang Machine
The STP-550 is a semi-automatic precision solder paste printer featuring programmable PLC control and motorized scraper traversing with digital speed and stroke regulation. Its automatic vertical stencil separation prevents paste smearing, significantly improving print quality for fine-pitch QFN and BGA footprints.
Processing & Feature Tags
ENGINEERING SPECIFICATIONS
Machine Specifications & Performance
Processing Capacity 半自動雙向刮印 (約 120 ~ 240 片/小時)
Power / Air Supply 氣壓控制掀蓋開架與刮刀下壓；手推雙向印刷
Standard Tolerance 重複精度 0.008 mm；板厚 > 0.8 mm
Dimensions (L×W×H) 840(L) × 920(W) × 250(H) mm
Net Weight 60 kg
Catalog Page & Status
P.21 (Catalog_0021) • 在產 (Active)
【Key Machine Features & Advantages】
- Semi-automatic clamshell SMT stencil printer, incorporating full-automation performance features for R&D, pilot runs, and high-mix manufacturing.
- Dual pneumatic squeegee system: independent air pressure controls maintain constant height and attack angle for bi-directional (left/right) strokes.
- True vertical stencil-to-PCB separation: pushing the yellow lever smoothly lowers the base vertically, eliminating solder paste smearing and dog-ears.
- Engineered for ultra-fine-pitch printing: delivers 0.008 mm repeatability, ideal for lead-free solder paste, 0201 chips, and dense QFN/BGA pads.
- Pneumatically controlled frame lift: smooth push-button pneumatic lifting of the stencil frame ensures stable, jar-free loading and unloading.
- Wide frame capacity: accommodates stencil frames from 12" × 12" up to 24" × 24" (300×300 to 600×600 mm), with print area up to 14" × 17" (356×430 mm).
- Comprehensive squeegee options: equipped standard with a 9" (228 mm) squeegee, with optional 12", 14", 16", and 17" metal or rubber squeegees.
- Tool-free universal PCB holders for single/double-sided boards with adjustable down-pressure valve, built upon a rigid 60 kg cast/steel chassis.
【Revision Notes】 網框 12"×12"~24"×24"；印刷面積 14"×17"；標配 9"(228mm) 刮刀，可選購 12", 14", 16", 17"。重複誤差 0.008mm。淨重 60kg。
Lead Forming & Geometric Parameter Specifications
Unit: mm / Custom tooling available Dimension & Bending Schematic STP-550
Callouts match specifications in the table (Click image to enlarge)
| Code | Parameter | Standard Value / Range | Engineering Notes |
|---|---|---|---|
| FRAME_SIZE | Suitable Frame Range | 12" × 12" 至 24" × 24" (300×300 ~ 600×600 mm) | The steel plate frame must be drilled and fixed |
| PRINT_AREA | Printing Area | 14" × 17" (356 × 430 mm；再小範圍可客製) | Comprehensive coverage of mainstream PCBA specifications |
| PCB_THICK | Applicable PCB Thickness | 必須大於 > 0.8 mm (常見 1.0 / 1.2 / 1.6 mm) | Standard PCBA plate thickness is fully applicable |
| REPEATABILITY | Repeatability Precision | 0.008 mm | Ultra-fine pitch Ultra-Fine Pitch printing |
| STD_SQUEEGEE | Standard Squeegee Length | 9" (228 mm) | Standard high wear-resistant scraper |
| OPT_SQUEEGEE | Optional Squeegees | 可選購 12", 14", 16", 17" 金屬或橡膠刮刀 | Free selection according to different stencil opening widths |
| DUAL_SQUEEGEE | Dual Pneumatic Squeegees | 雙隻氣壓控制刮刀下壓，左右推拉雙向印刷 | Push to the left and scrape to the right, pull to the right to scrape, the solder paste is even and full |
| VERTICAL_SEP | True Vertical Separation System | 推動黃色旋鈕桿底座平順垂直下降 | Ensures vertical demolding without jitter, and prevents the solder paste tip from sticking |
| AXIS_ALIGN | Independent X, Y & Theta Alignment | 精密 X、Y、θ 軸微調對位機構 | Micron-level precision alignment of micro-pitch pads |
| PNEU_FRAME | Pneumatic Frame Raising | 按鈕式操作，氣壓自動控制開架與掀蓋 | The switch frame moves smoothly and safely without shaking |
| PRESSURE_VALVE | Down-Pressure Control Valve | 免工具調整雙面板固定座，可調向下壓力閥 | The pressure channel of the scraper is accurately adjustable |
TECHNICAL DOCUMENTATION
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Technical Documents & User Manuals
Digital manuals for this machine are being archived. Please email engineering for direct documentation. Request Manual →
GENUINE CONSUMABLES
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Recommended Genuine Consumables & Spare Parts
Genuine replacement blades, belts, and dies are kept in stock for this machine line. Browse Parts Catalog →
