Description
B-70406-46 RCV Slewing Control Block | Tower Crane Spare Part
Model No.:B-70406-46
The B-70406-46 is an RCV Slewing Control Block used in compatible tower crane slewing control systems. It is an electrical control component associated with the crane rotation system and is supplied as a replacement spare part for tower crane maintenance and repair.
B-70406-46 is identified in industry and trade records as an RCV Block / RCV Control Board for tower crane applications. The exact electrical configuration and crane compatibility should be confirmed against the original component before ordering.
Product Applications
- Specialized for tower crane RCV slewing system assembly.
- Tower crane slewing control system
- Tower crane rotation control
- Applied in crane rotary driving mechanism.
- Ensure stable and flexible rotating operation.
- Bear heavy load and reduce running friction.
- Suitable for various construction tower cranes.
- Perfect replacement for damaged original slewing blocks.
Technical Specifications
| Item | Specification |
| Product Name | RCV Slewing Control Block |
| Part Number | B-70406-46 |
| Equipment | Tower Crane |
| System | Slewing Control System |
| Application | Tower Crane Slewing System |
| Component Type | Electrical Control Component |
| Usage | Replacement / Maintenance / Repair |
| Condition | Replacement Spare Part |
| Function | Slewing / Rotation Control |
Product Details Display

Our Advantages
- Professional supplier of tower crane spare parts
- Competitive pricing
- Stable supply and fast delivery
- Strict quality inspection before shipment
- Export experience to global markets
FAQ
Q1: Are you a manufacturer or a trading company?
A1: We are a manufacturer specializing in tower crane steel components. Additionally, we act as an integrated supplier for other construction machinery and spare parts to provide a one-stop sourcing solution for our clients.
Q2: What is your standard delivery time?
A2: For items in stock, we can ship within 1-2 business days. For bulk orders or customized products, the lead time is typically 15-25 days, depending on the order volume.
Q3: How do you ensure product quality?
A3: Quality is our priority. We implement strict pre-shipment inspections for every order. Furthermore, we offer a 1-year warranty to ensure our clients’ peace of mind.
Q4: What are your packaging standards?
A4: We use standard export seaworthy packaging, including robust wooden cases and reinforced cartons. They are specifically designed to withstand the rigors of long-distance international shipping.
Q5: Which shipping methods do you support?
A5: We support multiple shipping channels, including Sea Freight (LCL/FCL), Air Freight, and International Express (DHL/FedEx/UPS), to meet different urgency and budget requirements.
Q6: What happens if the goods are damaged during transit?
A6: While our robust packaging prevents most damage, if any issues occur, we will take immediate action. We will negotiate compensation or provide a reshipment/replacement service based on the specific situation.
Q7: What is B-70406-46?
A7: B-70406-46 is an RCV Slewing Control Block used in compatible tower crane slewing control systems.
Q8: What is the function of B-70406-46?
A8: The B-70406-46 is an electrical control component associated with the tower crane slewing system and is used for controlling the crane’s rotation operation.
Q9: Is B-70406-46 an electrical spare part?
A9: Yes. B-70406-46 is an electrical control component supplied as a replacement spare part for compatible tower crane systems.







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