Safety reminder label for PPR welding machine

A safety and operation panel for a pipe welding machine. The heading is 'Recommended splicing temperature' with a warning icon. It lists recommended temperatures for three pipe types: PPR pipe: 270±15  ∘ C, PE pipe: 240±15  ∘ C, and PB pipe: 220±15  ∘ C. A box labeled 'Operation tips' gives three steps: 1. Press SET to set the temperature. 2. Press ↑ / ↓ to adjust the temperature up or down. 3. Press SET again to confirm the setting. A warranty warning states: 'If the seal is removed, it will be damaged and the warranty will be void.' Three safety icons are shown at the bottom for mandatory use of gloves, high temperature hazard, and electricity hazard

Haotian PPR welding machine not only outputs temperature, but also delivers deliverable welding results and long-term trust. We will directly integrate safety tips and operating procedures into the device itself, strengthen awareness with labels, and ensure results with design. Every icon and every prompt you see is the accumulation of manufacturing standards and on-site experience

Engineering Safety: Where Labels Matter

Key safety icons—for gloves, high temperature, and electrical hazards—are placed in critical, highly visible positions. This visual vigilance is backed by superior hardware design:

  • Insulated Housing & Handles: Significantly reducing the risk of burns from hot surfaces.
  • Compliant Internal Wiring: All internal circuitry and cable routing meet international safety standards, actively minimizing electrical hazards.
  • Clear Visual Cues: These on-device reminders reduce operator error on-site, leading to fewer accidents and fewer warranty claims.
Three safety warning icons for a welding machine. From left to right: A blue circular mandatory action sign showing a hand wearing a glove with the text 'USE GLOVES'; A yellow triangular warning sign with a hand touching a red, hot surface with wavy lines and the text 'HIGH TEMPERATURE'; A yellow triangular warning sign showing a lightning bolt with the text 'ELECTRICITY'.
PPR welding machine safety tips

Precision Temperature Control: Matching Material to Result

The device’s digital controller supports the recommended fusion temperature range for various polymers, ensuring an optimal melt for molecular fusion:

PolymerRecommended Fusion Temperature
PPR (Polypropylene Random Copolymer)270±15 ∘C
PE (Polyethylene)240±15 ∘C
PB (Polybutene)220±15 ∘C

These settings aren’t arbitrary—they reflect the precise melting characteristics of each polymer. Our controller keeps the temperature stable within the specified band, allowing each joint to achieve the correct melt flow and molecular fusion. This precision minimizes instances of weak joints and post-installation leaks.

A safety and operation panel for a pipe welding machine. The heading is 'Recommended splicing temperature' with a warning icon. It lists recommended temperatures for three pipe types: PPR pipe: 270±15  ∘ C, PE pipe: 240±15  ∘ C, and PB pipe: 220±15  ∘ C. A box labeled 'Operation tips' gives three steps: 1. Press SET to set the temperature. 2. Press ↑ / ↓ to adjust the temperature up or down. 3. Press SET again to confirm the setting. A warranty warning states: 'If the seal is removed, it will be damaged and the warranty will be void.' Three safety icons are shown at the bottom for mandatory use of gloves, high temperature hazard, and electricity hazard
Recommended welding temperature for ppr welding machine

Operation Designed for Consistency: Precise Control, Simplified Workflow

We recognize that most joint failures stem from operator error, not hardware malfunction. That’s why we engineered the Haotian PPR Welding Machine not only for precision but also for simplicity.

The digital controller allows the operator to quickly and accurately dial in the exact required temperature for a given polymer (PPR, PE, or PB) using the simplified onboard prompts: SET → ▲/▼ → SET.

This optimized workflow is designed to:

  • Ensure Perfect Fusion: By providing a stable, precisely controlled temperature, the system takes the guesswork out of heating, ensuring the material reaches the ideal melt flow for a superior molecular bond and stronger joint.
  • Minimize Operator Error: Intuitive controls drastically reduce the chance of missetting the temperature—the single greatest cause of poor weld quality.
  • Reduce Reliance on Operator Experience: Repeatable, temperature-perfect cycles guarantee repeatable, high-strength joints. Even a novice plumber can easily achieve a perfect, leak-proof weld with the assurance of professional quality.
  • Increase Project Efficiency: Minimize setup time, shorten preheat cycles, and virtually eliminate joint failures, leading to a substantial reduction in project rework and expensive
  • callbacks.
Close-up of a digital temperature control panel for a PPR welding machine. The panel features a three-digit display with two indicators: PV (Process Value or Actual Temperature) and SV (Set Value or Target Temperature). To the left are two indicator lights: a red light labeled RDY (Ready), which illuminates when the set temperature is reached, and a green light labeled HEAT (Heating), which illuminates during the heating process. Below the display are three control buttons: SET
PPR welding machine digital display panel

A Commitment to Safe Operation


Our labels are not just stickers; they represent a serious commitment to product safety. These warnings and instructions directly alert Haotian PPR Welding Machine users, ensuring safer operation and effectively guiding new operators toward standardized procedures. This intense focus on compliance and safety is the core of our product’s value proposition: safer operation,

  • Fewer On-Site Failures and Warranty Incidents: The labeled safety and operational guides minimize human error and accidents.
  • Greater Confidence in Commercial and Export Projects: Our Design for Compliance philosophy ensures the machine gains stronger acceptance in demanding commercial projects and international export markets.
  • Higher Installation Efficiency and Lower Labor Costs: The machine’s ease of use and consistent, high-quality results reduce training time and mitigate the risks associated with novice operation.

Related Products

Handheld digital display plastic pipe heat fuser, blue handle, silver flat heating head with LED temperature display and control buttons.

Handheld blue 20-40mm ppr welding machine

A complete connection diagram for a digital temperature control panel for a PPR welder. The green control panel (with a digital display and three buttons) is connected via a red wire to a high-power thyristor (SCR), which is screwed to the aluminum heating plate. A white ceramic temperature sensor probe is connected to the control panel via red and black wires, enabling real-time, accurate temperature measurement and control of the heating plate.

Welding machine PCB circuit board

Socket welding machine circuit board (PCB)

Welding machine digital temperature control PCB motherboard

Constant temperature circuit board

Automatic Constant Temperature Control Board

A Hao Tian brand handheld PPR pipe welding machine in green and silver. It features a green ergonomic handle, a digital temperature display with 'SET' and arrow buttons, and red/green indicator lights. The main heating plate is silver, with a circular heating die and an elongated slot for another die. Below the main body, there's a sturdy, U-shaped silver metal stand for stability. Various small safety labels are visible on the side of the green housing

Small round ppr welding machine

Metal socket welding machine fixture

Socket welding machine fixture

Round PPR welding mold

Round PPR welding mold 20-32mm

PPR welding machine iron box

PPR welding machine iron box