EVERWIN Spring Balancer User Manual

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EVERWIN Spring Balancer

EVERWIN-Spring-Balancer-product

Specifications

Series / Model Weight Capacity Wire Length Contraction Length
SBK-1 0.5–1.5 kg 2.0 m 2.0 m
SBK-2 0.6–2.0 kg 2.0 m 2.0 m
SB-1-3M 0.5–1.5 kg 3.0 m 2.0 m
SB-2-3M 0.6–2.0 kg 3.0 m 2.0 m
SBD-12 0.5–1.2 kg 1.2 m 1.2 m
SBA-15 0.5–1.5 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SBA-20 0.6–2.0 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SBA-30 1.5–3.0 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SBA-50 3.0–5.0 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SB-1200 0.5–1.2 kg 2.0 m 2.0 m
SB-2000 0.6–2.0 kg 2.0 m 2.0 m
SB-3000 0.6–3.0 kg 2.0 m 2.0 m

*Available in both standard (1.3m) and extended (3.0m) versions.

Quick Guide

  1. Select two appropriate suspension points above the workstation to prevent skewing.
  2. Connect the safety chain first before hanging the balancer.
  3. Attach the fixing pipe to the suspension point and confirm the mounting surface can support at least 1.5 times the maximum load capacity.
  4. Before first use, extend the wire rope fully.
  5. Check smooth retraction without binding, and verify the anti-collision rubber sleeve is properly positioned.
  6. Adjust tension: rotate the adjustment knob counterclockwise to increase tension; clockwise to decrease tension (disconnect fixed pipe first, then reconnect after adjustment).
  7. Set working height: pull the suspended object down/up to the desired height, then engage the manual locking mechanism using the positioning clip (for SBA/SB series, adjust the screw to set lock distance to approximately 10cm from the starter, then secure firmly).
  8. Normal operation: guide tools up/down smoothly without forcing movement; tools should float freely within the weight capacity range.

Product Overview

The Spring Balancer is an industrial-grade device designed to support and balance tools or equipment in various working environments. It features a tension adjustment mechanism, safety locking system, and durable construction suitable for dust-free industrial applications.

Manufacturer Information

Company: Wenzhou Zhengbang Electronic Equipment Co., Ltd Address: 6/F, International Chamber of Commerce Building, Renhui Road, Ouhai District, Wenzhou City, Zhejiang Province, China Zip Code: 325000

Product Series & Specifications

SBK Series (Plastic Shell)

  • Industrial Grade: Dust-free environment suitable
  • Key Features:
    • Tension adjustment knob (counterclockwise rotation increases tension)
    • Manual height locking mechanism
    • Safety positioning clip
    • Hot galvanized wire rope with high cohesion
Model Weight Capacity Wire Length Contraction Length
SBK-1 0.5-1.5 kg 2.0 m 2.0 m
SBK-2 0.6-2.0 kg 2.0 m 2.0 m
SB-1-3M 0.5-1.5 kg 3.0 m 2.0 m
SB-2-3M 0.6-2.0 kg 3.0 m 2.0 m

SBD Series (Plastic Shell)

  • Special Features:
    • Dual-ring suspension design to prevent skewing
    • Enhanced cushioning system
    • Manual locking with positioning clip
Model Weight Capacity Wire Length Contraction Length
SBD-12 0.5–1.2 kg 1.2 m 1.2 m

SBA Series (Metal Case)

  • Technical Grade Construction
  • Advanced Safety Features:
    • Automatic locking in case of spring failure
    • Anti-collision rubber sleeve
    • Self-locked hook mechanism
Model Weight Capacity Wire Length Contraction Length
SBA-15 0.5–1.5 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SBA-20 0.6–2.0 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SBA-30 1.5–3.0 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*
SBA-50 3.0–5.0 kg 1.3 m / 3.0 m* 1.3 m / 3.0 m*

*Available in both standard (1.3m) and extended (3.0m) versions

SB Series (Metal Case)

  • Professional Technical Grade
  • Enhanced Durability Features:
    • Thickened anti-collision rubber sleeve
    • Precision tension control
    • Secure locking mechanism
Model Weight Capacity Wire Length Contraction Length
SB-1200 0.5–1.2 kg 2.0 m 2.0 m
SB-2000 0.6–2.0 kg 2.0 m 2.0 m
SB-3000 0.6–3.0 kg 2.0 m 2.0 m

Installation Instructions

Mounting Procedure

  1. Select two appropriate suspension points above the workstation to prevent skewing.
  2. Connect the safety chain first before hanging the balancer.
  3. Attach the fixing pipe to the suspension point.
  4. Ensure the mounting surface can support at least 1.5 times the maximum load capacity.

Wire Rope Setup

  1. Extend the wire rope fully before first use.
  2. Check for smooth retraction without binding.
  3. Verify the anti-collision rubber sleeve is properly positioned.

Operation Guide

Tension Adjustment

  1. To Increase Tension: Rotate the adjustment knob counterclockwise.
  2. To Decrease Tension:
    • Disconnect the fixed pipe.
    • Rotate the knob clockwise.
    • Reconnect the fixed pipe.

Height Locking

  1. Pull down the suspended object to desired working height.
  2. Engage the manual locking mechanism using the positioning clip.
  3. For SBA/SB series: Adjust the screw to set lock distance (approximately 10cm from starter).
  4. Secure the locking screw firmly.

Normal Operation

  • The balancer will automatically maintain tension to support your tool.
  • Tools should float freely within the weight capacity range.
  • Smoothly guide tools up or down without forcing movement.

Safety Warnings

Critical Safety Instructions

  1. Never exceed the specified weight capacity for your model.
  2. Always connect the safety chain before suspending any load.
  3. Do not operate without a suspended object as this may damage the wire rope.
  4. Inspect the wire rope regularly for signs of wear, fraying, or damage.
  5. In case of spring failure, the safety lock will engage automatically – do not attempt to bypass this feature.
  6. Ensure mounting points are secure and can handle dynamic loads.
  7. Keep hands clear of moving parts during operation.
  8. Do not modify or alter any safety mechanisms.

Operational Precautions

  • Avoid sudden impacts or jerking motions.
  • Do not allow the wire rope to completely retract with no load.
  • Keep the unit clean and free from excessive dust or debris.
  • Operate within specified temperature ranges (-10°C to +40°C).

Maintenance & Care

Regular Inspection

  • Daily: Check wire rope condition and smooth operation.
  • Weekly: Verify locking mechanism functionality.
  • Monthly: Inspect mounting hardware and safety chain.
  • Quarterly: Lubricate moving parts if necessary (use light machine oil).

Cleaning

  • Wipe exterior with a clean, dry cloth.
  • Remove dust from the wire rope with a soft brush.
  • Do not use solvents or corrosive cleaners.
  • Keep the anti-collision rubber sleeve clean and flexible.

Storage

  • Store in a dry environment away from direct sunlight.
  • Fully retract the wire rope when not in use for extended periods.
  • Hang vertically to prevent wire rope deformation.

Troubleshooting

Problem Possible Cause Solution
Uneven tension Incorrect adjustment Readjust tension knob per Section 5.1
Wire rope binds Dirty/damaged rope Clean or replace wire rope
Lock won’t engage Misaligned clip Reposition locking clip per Section 5.2
Excessive bounce Wrong weight range Verify load is within specification
Slow retraction Internal friction Contact authorized service center

Warranty & Support

This product is covered by the manufacturer’s warranty against defects in materials and workmanship. For technical support, replacement parts, or service inquiries, please contact:

Wenzhou Zhengbang Electronic Equipment Co., Ltd Address: 6/F, International Chamber of Commerce Building, Renhui Road, Ouhai District, Wenzhou City, Zhejiang Province, China Zip Code: 325000

Documents / Resources

PDF thumbnailSpring Balancer
User Manual · Spring Balancer, Balancer

References

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