30 X 4 Serrated Bar Grating Stair Treads Skid Proof Beautiful Surface
30X4 30x5 Galvanized Serrated Steel Grating for Drain Stairs or Building
Description:
1. Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 25 x 3 to 100 x 8; The specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.
2. Bearing Bar Pitch (center to center):
12.5, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on. >
3. Material:
Mild Steel (Low Carbon Steel) or Stainless Steel
4. Surface Treatment:
Untreated, Painting or Hot DIP Galvanizing
| Pitch of Bearing bar | Cross-bar Pitch | Specification of steel graing(width×thickness) | ||||||
| 20×3 | 25×3 | 32×3 | 40×3 | 20×5 | 25×5 | |||
| 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 | |
| 50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 | ||
| 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 | |
| 50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 | ||
| 60 | 50 | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 | ||
| Pitch of Bearing bar | Cross-bar Pitch | Specification of bearing bar load(width×thickness) | ||||||
| 32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | |||
| 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 | |
| 50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 | ||
| 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 | |
| 50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 | ||
| 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 | |
High strength, light structure: solid grid pressure welding structure has advantages of high load, light structure, easy installation, etc.
Fine appearance, durable in use: hot zinc dipping surface treatment makes it own fairly good corrosion resistance, bright and beautiful surface.
Good ventilation, lighting, thermal, anti-explosion, and anti-skid performance.
Prevent dirt deposition.
- We can provide free steel bar grating samples of small sizes, but customers need to pay the express cost.(This can be discussed)
- OEM is accepted. We have technical engineers. Then we can design steel bar grating for customers’
projects, and make
products according to customers’ drawing.
- Once receiving customers’ inquiries. Our company promises to provide services within 24 hours.
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Question: Can you produce the steel grating according to the sizes of the customers requirement?
Answer: Most supplying steel gratings are produced according to the drawing. There are design and technical departments in our company, the specialist in these departments have many years of development experience.
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Question: We are going to buy press-locked steel grating, what is the maximum size of bearing bar?
Answer: The maximum size of press locked steel grating is 2500 × 2200 mm, 2500 mm is the maximum length of bearing bar, 2200 mm is the maximum length of crossing bar, the size of the corresponding standard mesh is 34 mm × 33 mm.
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Question: Can I replace or return the received goods?
Answer: According to your letter or claim, we will be processed within two working days, because our company is committed to providing high quality service to our customers.
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Question: What are the benefits of choosing your company as regular customers?
Answer: If choose our company, each customer can enjoy a certain discount. And each customer will be assigned a manager who is responsible for working with the business.
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Question: What's standard that the products accord with?
Answer:- AS 1657-2013 Fixed platforms, walkways, stairways and ladders - Design, construction and installation.
- BS EN ISO 14122-1 Safety of machinery Permanent means of access to machinery Part 1: Choice of fixed means and general requirements of access.
- BS EN ISO 14122-2 Safety of machinery Permanent means of access to machinery Part 2: Working platforms and walkways.
- BS EN ISO 14122-3 Safety of machinery Permanent means of access to machinery Part 3: Stairs, stepladders and guard-rails.
- BS EN ISO 14122-4 Safety of machinery Permanent means of access to machinery Part 4: Fixed ladders.
- BS 4592-1 Industrial type flooring and stair treads. Metal open bar gratings - Specification.
- In addition to the above standards, we can also produce steel grating that meets other national standards in accordance with customer's requirements.
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