China Variable Spring Support and Hanger Manufacturers Factory

Your Professional Variable Spring Support and Hanger Supplier!

Shandong Jianeng Technology Co., Ltd. has a complete product system, including spring support and hanger,pipe support,cryogenic support,pressure vessel and so on. The above products can meet different working conditions of end-users,Jianeng provides customized products according to the different needs of users ,its products are widely used in petrochemical,gas,power plant,steel, and other fields.

Single Row Four-post Box Spring
A single-row four-column spring box with enhanced support and shock absorption is a spring support device designed for highly demanding application scenarios.
Single Row Double Column Spring Box
Single-row double-column spring box is a kind of spring support equipment with relatively simple structure but high efficiency. It is mainly used to provide stable and reliable support for various
Single Row Three-post Box Spring
The structure of single-row three-column spring box is optimized on the basis of single-row double-column spring box, and a supporting column is added to improve the overall supporting capacity and
Type A Top Rod Variable Spring Hanger
The Type A Top Rod Variable Spring Hanger is engineered to provide reliable vibration isolation and load compensation in piping systems, HVAC networks, and industrial equipment.
Type B Single Lug Variable Spring Hanger
The Type B Single Lug Variable Spring Hanger provides reliable vertical support for piping, HVAC systems, and industrial equipment, compensating for thermal expansion and vibration. Its robust
Type C Double Plate Variable Spring Hanger
The Type C Double Plate Spring Hanger supports heavy industrial loads while absorbing thermal shifts and vibrations. Its reinforced dual-plate design ensures stability, durability, and adaptability
Type D Top-Adjustable Spring Hanger
The Type D Top-Adjustable Spring Hanger offers easy, tool-free load adjustments from above for piping, ducts, and equipment. Ideal for tight spaces, it ensures precise load control in dynamic
Type E Bottom-Adjustable Spring Hanger
The Type E Bottom-Adjustable Spring Hanger simplifies load adjustments with its ground-level tuning design. Perfect for heavy-duty, high-heat, or hard-to-reach systems, it supports up to 25,000
Type F Modular Spring Support
The Type F Modular Spring Support adapts to complex layouts with on-site adjustable brackets. Ideal for heavy loads (up to 40,000 kg), harsh environments, and dynamic systems needing precision
Type G Parallel Spring Hanger
The Type G Parallel Spring Hanger uses dual-spring parallel technology to evenly distribute heavy loads and absorb shocks, ideal for critical infrastructure in seismic zones, mega-construction, and

Why Choose Us

Patent Certificate

We have passed ISO9001 quality system, ISO14001 environmental system and OHSAS18001 occupational health protection system certification. We also have A2 grade qualification certificate for pressure vessels and American ASME U steel seal qualification certificate system.

Customized service

With our professional team, advanced technology and perfect service system, we can meet the diverse needs of customers and provide personalized customized products and solutions.

QC Inspection

Jianeng ensure quality and compliance through rigorous inspections, including material checks, load testing, dimensional verification, and non-destructive testing (NDT). Our reports confirm adherence to ASME, ISO, and project-specific standards, minimizing risks and ensuring long-term reliability.

Our Best-Selling Variable Spring Support and Hanger

Our Company Has More Products to Offer, Please Browse the Product Categories on the Website, If You Have Any Needs, Please Contact Us.

Single Row Four-post Box Spring
The single-row frame structure is composed of four supporting columns, and the spring is closely surrounding the supporting columns. The material selection and manufacturing process of the support columns are extremely strict, ensuring excellent strength and rigidity. The spring adopts advanced manufacturing technology to ensure the consistency and reliability of elastic properties.

Single Row Double Column Spring Box
Single-row double-column spring box is a kind of spring support equipment with relatively simple structure but high efficiency. It is mainly used to provide stable and reliable support for various types of elastic support systems to cope with the force requirements under different working conditions.

Single Row Three-post Box Spring
The structure of single-row three-column spring box is optimized on the basis of single-row double-column spring box, and a supporting column is added to improve the overall supporting capacity and stability.

Variable Spring Support and Hanger Specification

HANGER SIZE

LOAD RATING (LBS)

WEIGHT APPROX EACH (LBS)

CASING OUTSIDE DIA C (IN)

BASE PLATE SQUARE L (IN)

BASE PLATE THK. T (IN)

BOLT CIRCLE MIN. (IN)

BOLT CIRCLE MAX. (IN)

BOLT DIA. D (IN)

INSTALLED HT. X MIN. (IN)

INSTALLED HT. X MAX. (IN)

LOAD COLUMN DIA. (IN)

LOAD FLANGE SQUARE N (IN)

LOAD FLANGE THK. (IN)

7 1/2

1/4

8 3/4

5/8

6 5/8

7 13/16

1 9/10

3/16

100

7 1/2

1/4

8 3/4

5/8

6 5/8

7 13/16

1 9/10

3/16

128

7 1/2

1/4

8 3/4

5/8

6 5/8

7 13/16

1 9/10

3/16

166

5 9/16

7 1/2

1/4

7 3/4

8 3/4

3/4

6 3/8

7 11/16

2 7/8

3/16

223

5 9/16

7 1/2

1/4

7 3/4

8 3/4

3/4

6 3/8

7 11/16

2 7/8

3/16

299

5 9/16

7 1/2

1/4

7 3/4

8 3/4

3/4

6 3/8

7 11/16

2 7/8

3/16

399

6 5/8

3/8

10 7/8

3/4

7 5/8

8 15/16

2 7/8

1/4

532

6 5/8

3/8

10 7/8

3/4

7 5/8

8 15/16

2 7/8

1/4

713

6 5/8

3/8

10 7/8

3/4

7 5/8

8 15/16

2 7/8

1/4

950

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

8 5/8

10 1/16

4 1/2

1/2

1235

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

8 5/8

10 1/16

4 1/2

1/2

1615

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

8 5/8

10 1/16

4 1/2

1/2

2138

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

8 5/8

10 1/16

4 1/2

1/2

2850

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

8 5/8

9 15/16

4 1/2

1/2

3800

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

10 3/4

11 3/16

4 1/2

1/2

5130

104

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

10 3/4

11 3/16

4 1/2

1/2

7125

116

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

12 3/4

12 15/16

4 1/2

1/2

9500

131

8 5/8

13 1/4

1/2

10 9/16

16 1/2

3/4

12 3/4

12 15/16

4 1/2

1/2

12645

272

12 3/4

17 1/4

5/8

15 3/4

3/4

15 1/8

14 5/16

5 9/16

1/2

16805

278

12 3/4

17 1/4

5/8

15 3/4

3/4

15 1/8

14 5/16

5 9/16

1/2

22325

352

12 3/4

17 1/4

5/8

15 3/4

3/4

15 3/8

14 5/16

5 9/16

1/2

29688

356

12 3/4

17 1/4

5/8

15 3/4

3/4

18 7/8

17 5/16

5 9/16

1/2

39591

448

12 3/4

17 1/4

5/8

15 3/4

3/4

17 1/16

5 9/16

1/2

Variable Spring Support and Hanger Advantages

High Load Capacity

Engineered to handle heavy loads with uniform stress distribution.

Variable Spring Design

Automatically adjusts to vertical displacement caused by thermal changes

Corrosion Resistance

Made of stainless steel/carbon steel with optional coatings for harsh environments.

Easy Installation

Pre-assembled components and adjustable bolts reduce setup time.

Low Maintenance

Variable spring support and hangers and durable construction minimize wear.

Customizable

Tailored spring rates, sizes, and materials to meet project specifications.

Customization Services

We offer custom variable spring support and hanger manufacturing solutions to meet your needs. The main customizable options are:

Material	Customizable
Load capacity	Customizable
Travel range	Customizable
Connection type	Customizable
Appearance size	Customizable
Our customization capabilities extend beyond the options listed above. Should you have additional requirements, we are able to make flexible adjustments in accordance with your specific needs and circumstances.

Variable Spring Support and Hanger Principle

Elasticity – When a material deforms due to applied stress and returns back to its original form when the stress is removed.

Plasticity - When a material deforms due to applied stress and does not return back to its original form when the stress is removed.

Type C Double Plate Variable Spring Hanger

Variable Spring Support and Hanger Structure Type

Variable Types A, B, C

Each of these is provided with an attachment that connects the top of the spring can to an overhead structural member. Type A is supplied with a threaded bushing for a threaded rod which in turn is connected to the structural support. Types B and C are provided with one or two lugs, respectively. These are then attached to the structural support. The pipe is then suspended below the spring can using a rod assembly.

Variable Types D and E

These rest on the supporting structural member, usually on a pair of channels. Type D has a rod which passes through the hanger, permitting adjustment from the top.
Securely weld or bolt the bottom of spring to the structure. For Type D, pass the hanger rod assembly through load column and attach it with a washer and hex nut to hold hanger rod in position.

Type F Spring (Base TYPE)

In Type F springs the pipe rests on the support, which is typically welded or bolted to the floor or other structural member. Securely attach spring casing base plate to the supporting structure by bolting or welding the base plate to the structure. Place the load flange on the load column and turn the load column counter clockwise until the load flange is against the pipe.

Type G Spring (Double)

The Type G spring consists of two regular springs which support a beam between them. the pipe then rests on the beam. Connect the rod assembly to the load columns. Connect the other end of the rods to the structural support. Make sure the spring cans are suspended with the rod assembly above the spring.

Variable Spring Support and Hanger Applications

Common cases which require variable spring support and hanger application are as follows:

Lines connected to/from extremely high or low temperature pressure vessel (e.g. reactor, coke drum, LNG separator)

Lines connected to/from extremely high or low temperature rotating equipment (e.g. power expander, gas compressor)

Lines connected to fired heaters

Lines connected to storage tanks subjected to high differential settlement

Lines connected to high temperature air-cooled heat exchangers

In-line shell and tube heat exchangers (reboilers) attached to column

Precautions for Variable Spring Support and Hanger

Common items to be checked during variable spring support and hanger installation are as follows:

Primary parts and miscellaneous components of variable spring support and hanger assembly

Name plate information

Orientation of structural attachments such as clevis lug – considering the pipe displacement direction

Bolting status of each component

Welding quality of load sustaining parts

Load indicator set as per spring datasheet

Packaging and Shipping

Packaging	Plastic film, wooden box, carton
Transportation methods	Road transport, rail transport, sea transport, air transport

Our Certificate

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FAQ

Q: Can it handle seismic activity?

A: Engineered for ±25mm lateral displacement during shocks.

Q: Custom surface treatments?

A: Choose from zinc plating, ceramic coatings, or PTFE finishes.

Q: How do bottom adjustments work?

A: Turn the base nut to compress/release the spring – adjustments take seconds.

Q: Maintenance required?

A: None – Self-lubricating springs and sealed bearings.

We're well-known as one of the leading variable spring support and hanger manufacturers in China. Please feel free to buy customized variable spring support and hanger at competitive price from our factory. Contact us for more details.

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