Tie Back Testing
Proof and performance testing of tiebacks and ground anchors with center-hole jacks and load cells from 1 to 2,000 tons.
CALL US NOW! 866-522-5464
WHAT IS TIE BACK TESTING?
Tiebacks are anchors installed through retaining walls and excavation supports into stable soil or rock to resist earth, water, wind and seismic forces. Tie back testing loads each anchor with a center-hole hydraulic jack, in steps, while the elongation of the tendon is measured to produce a load-elongation curve. Performance and proof tests confirm the anchor can carry its design load without excessive creep before it is locked off, giving engineers confidence that walls and excavations will remain stable.
TIE BACK TESTING
Center-Hole Cylinders
TIE BACK TESTING
Load Cells & Readouts
TIE BACK TESTING
Dial Indicators
TIE BACK TESTING
Test Pumps
RENTALS
WB Equipment has provided jack & cylinder rentals for over 30 years,
We offer both short- and long-term rental options. Our extensive rental fleet includes high-quality hydraulic jacks, cylinders, torque and tension tools, lifting systems, and other specialized equipment. Serving industries such as construction, infrastructure, and energy,
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WB Equipment provides hydraulic equipment rentals for the whole of the USA.
WB Equipment Rentals provides reliable, high-quality machinery for construction, industrial, and commercial projects. Their inventory includes hydraulic tools, lifting equipment, and power solutions designed for efficiency and safety.
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WB Equipment has provided hydraulic jack & cylinder sevicing for over 30 years,
WB Equipment Servicing ensures machinery reliability through preventative maintenance, expert repairs, and safety checks. It minimizes downtime, extends equipment lifespan, and supports efficient, safe operations across industrial and construction environments.
Tie Back Testing
"Power Under Pressure:
Tie Back Testing from WB Equipment Corp."
1 to 2,000 Tons:
Test equipment for tiebacks and threaded rod of every size.
Center Holes ½ in to 15 in:
Center-hole cylinders to fit strand and bar tendons.
Load Cells to 1,500 Tons:
With digital readout boxes for accurate load measurement.
Manual, Electric or Air:
Systems to suit every site, plus calibration from 1 to 1,500 tons. [1]
OTHER PRODUCTS AVAILABLE FOR RENTAL
~ WITH TIE BACK TESTING ~
PEJ1401B, Two Speed, Electric Hydraulic Pump, 4/3 Manual Valve,115V, Use with Double-Acting Cylinders
Product code: PEJ1401B
Max pressure: 10,000 psi
Power source: Electric
Action type: Double-acting
Capacity: 1.5 gal
Motor voltage: 115 V
HA7206B, 6ft., Thermo-plastic High Pressure Hydraulic Hose, .25 in. Internal Diameter
Product code: HA7206B
Oil capacity: 3.54 in³
Maximum pressure: 10,000 psi
Accuracy: 1% of full scale
Thread: 1/4 NPTF in
Gauge adaptor: GA3
GF813P, Hydraulic Force and Pressure Gauge, Imperial Scale, for use with 20, 30, and 60 ton Cylinders
Product code: GF813P
Tonnage range: 20, 30 & 60 ton
Face diameter: 4 in
Accuracy: 1% of full scale
Thread: 1/4 NPTF in
Gauge adaptor: GA3
Enerpac P39 Single Speed ULTIMA Steel Hydraulic Hand Pump, 41 in³ Usable Oil, 10,000 psi
RENT NOW!Product code: P39
Max pressure: 10,000 psi
Max flow rate: 0.15 in³/stroke
Fluid capacity: 41 in³
Action type: Single-acting
Power type: Manual hand
WB Equipment Product & Services Catalog
Select Your Requirements from Popular Categories
Popular Categories
Enerpac & Simplex - Hydraulic Cylinders
Enerpac Cylinders
Low-Height Cylinders
Low-profile cylinders designed for low clearance applications
Capacity: 5 – 1,000 tons
Stroke: 0.24 – 2.44 in
Collapsed Height: 1.08 – 7.56 in
Enerpac Cylinders
Lock Nut Cylinders
Mechanically locking cylinders for safely holding a load
Capacity: 20 – 1,000 tons
Stroke: 1.77 – 11.81 in
Collapsed Height: 4.94 – 28.90 in
Enerpac Cylinders
High Tonnage Cylinders
Cylinders with the highest quality construction for enhanced durability
Capacity: 50 – 1,000 tons
Stroke: 1.97 – 11.81 in
Collapsed Height: 5.91 – 28.90 in
Enerpac Cylinders
Double-Acting Cylinders
Precise control and speed: the plunger advances and retracts hydraulically
Capacity: 4 – 1,000 tons
Stroke: 1.13 – 48 in
Collapsed Height: 7.19 – 64.75 in
Simplex Cylinders
Lock Nut Cylinders
Lock nut cylinders for extended, mechanically locked load holding
Capacity: 34 – 575 tons
Stroke: 1.77 – 11.81 in
Simplex Cylinders
High Tonnage Cylinders
Heavy-duty single- and double-acting cylinders, with lock nut options
Capacity: Up to the 1,000-ton class
Stroke: 1.77 – 11.81 in
Simplex Cylinders
Center-Hole Cylinders
Single- and double-acting cylinders with a center tube for pulling and tensioning with a rod or cable
Capacity: 12 – 646 tons
Stroke: 0.31 – 10.12 in
Simplex Cylinders
Low Height Cylinders
Compact, low height cylinders for tight spaces
Capacity: 10 – 150 tons
Stroke: 0.44 – 2.44 in
Enerpac Cylinders
Hollow Plunger Cylinders
Hollow bore cylinders for pulling and tensioning with a bar or cable
Capacity: 12 – 660 tons
Stroke: 0.31 – 10.13 in
Center Hole Diameter: 0.68 – 5.31 in
Enerpac Cylinders
Lightweight Cylinders
Durable aluminum cylinders for applications where weight is a factor
Capacity: 10 – 150 tons
Stroke: 1.97 – 9.84 in
Collapsed Height: 6.06 – 20.59 in
Enerpac Cylinders
Pull Cylinders
Cylinders designed for pulling objects together or apart
Capacity: 2.5 – 60 tons
Stroke: 5.00 – 6.02 in
Collapsed Height: 10.44 – 43.71 in
Enerpac Cylinders
Telescopic Cylinders
Multi-stage cylinders designed for extended lift heights
Capacity: 5 – 75 tons
Stroke: 0.67 – 23.62 in
Collapsed Height: 1.77 – 18.74 in
Simplex Cylinders
General Purpose Cylinders
General purpose cylinders built to ANSI/ASME B30.1, rated 10,000 psi
Capacity: 5 – 150 tons
Stroke: 0.62 – 24 in
Simplex Cylinders
Aluminum Cylinders
Lightweight aluminum cylinders, including spring return, lock nut and center hole models
Capacity: 30 – 150 tons
Stroke: 2 – 10 in
Simplex Cylinders
Pull Cylinders
Single- and double-acting pull cylinders
Capacity: 2 – 100 tons
Stroke: 5 – 6 in
Simplex Cylinders
Cylinder Tonnages
The full Simplex cylinder range, sorted by tonnage
Capacity Class: 2 – 1,000 tons
Max Pressure: 10,000 psi
Enerpac Cylinders
Production Cylinders
High cycle cylinders compatible with mounting attachments to simplify fixturing
Capacity: 4 – 25 tons
Stroke: 1.13 – 10.25 in
Collapsed Height: 7.31 – 20.69 in
Enerpac Cylinders
Long Stroke Cylinders
12 to 48 in stroke cylinders designed for extended lift heights
Capacity: 10 – 1,000 tons
Stroke: 12 – 48 in
Collapsed Height: 12.48 – 64.75 in
Enerpac Cylinders
Climbing Jacks
Designed for incremental lifting and lowering with cribbing
Capacity: 55 – 220 tons
Stroke: 5.91 – 6.34 in
Enerpac Cylinders
Single-Acting Cylinders
Simple operation: the plunger advances hydraulically in one direction
Capacity: 2.5 – 1,000 tons
Stroke: 0.24 – 23.62 in
Collapsed Height: 1.08 – 43.71 in
Enerpac Cylinders
General Purpose Cylinders
Versatile steel cylinders designed for a wide range of applications
Capacity: 5 – 500 tons
Stroke: 0.63 – 48.00 in
Collapsed Height: 1.63 – 64.75 in
Enerpac Cylinders
Cylinder Tonnage
Enerpac cylinders categorized by tonnage
Capacity: 2.5 – 1,000 tons
Stroke: 0.24 – 48.00 in
Collapsed Height: 1.08 – 64.75 in
Custom Cylinders
Center-Hole Cylinders
Center-hole cylinders designed and built by WB Equipment to your required capacity, stroke and hole size. Call our engineers to discuss your application.
VIEW PRODUCTSEnerpac Cylinders
Strand Jacks
Computer-controlled strand jacks for lifting and lowering very heavy loads
Capacity: 17 – 1,405 tons
Stroke: 9.8 – 23.6 in
Max Pressure: 5,000 psi
TIE BACK TEST SPECIFICATIONS
📘 What Is Tie Back Testing?
A tieback is a tensioned anchor, using steel strand or bar, bonded into soil or rock behind a retaining wall, sheet pile or soldier pile wall.
Each tieback is tested by loading it with a center-hole jack in increments, often to about 133% of the design load, while movement is recorded.
Performance tests on selected anchors include load cycles and creep checks. Proof tests on the remaining anchors confirm capacity before lock-off.
⭐ Key Features & Benefits of Our Tie Back Test Equipment
WB Equipment tieback test systems provide:
Wide capacity
Testing from 1 to 2,000 tons.
Center-hole sizes
Cylinders with center holes from ½ in to 15 in.
Load cells
Readouts from 0 to 1,500 tons for accurate loads.
Long-travel dials
Digital and manual dial indicators from 1 to 20 in.
Power options
Manual, electric or air-operated systems.
Calibration
In-house calibration from 1 to 1,500 tons.
🔧 Equipment Used for Tie Back Testing
A typical tieback test setup includes:
• Center-hole (hollow plunger) jack sized to the tendon
• Jack chair or stressing chair
• Hand, electric or air-driven pump
• Calibrated pressure gauge
• Load cell with digital readout
• Dial indicator on an independent reference
• Anchor head, wedges or bar nut for lock-off
🏗️ Common Applications for Tie Back Testing
Tie back testing is used for:
• Excavation support walls
• Permanent retaining walls
• Soldier pile and lagging walls
• Sheet pile and slurry walls
• Rock and soil anchors
• Tiedown and uplift anchors
• Dam and slope stabilization
📈 Advantages of Tie Back Testing
Testing every tieback provides:
Verified capacity
Each anchor proven before lock-off.
Creep checks
Confirms anchors will hold load long term.
Wall safety
Reduces the risk of wall movement or failure.
Compliance
Meets specification and agency requirements.
Documented results
Load-elongation records for every anchor.
⚠️ Limitations to Plan For
Tieback testing needs planning. Plan for:
• Test loads, hold times and acceptance criteria from the engineer
• Grout cure time before testing
• Jack chair to clear the anchor head
• Enough tendon length to grip with the jack
• An independent reference for movement readings
• Lock-off load and anchorage method
• Trained crews and exclusion zones behind the jack
💡 Why Choose WB Equipment?
One supplier
Center-hole jacks, pumps, load cells and dials from one source.
Engineering advice
Help selecting equipment for your anchors and test loads.
Rent or buy
Rent tieback test systems or buy for your crew.
Nationwide delivery
Equipment shipped to your jobsite, with overnight options.
🏭 Industries That Use Tie Back Testing
• Excavation support and shoring contractors
• Foundation and geotechnical contractors
• Heavy civil and highway contractors
• Testing and inspection agencies
• Dam and water infrastructure owners
• Departments of transportation
• Geotechnical engineers
🧭 How to Choose Tie Back Test Equipment
Selecting the right equipment depends on:
• Maximum test load and jack capacity
• Tendon type: strand or bar, and its size
• Center-hole diameter and jack stroke
• Load cell capacity and readout
• Dial indicator travel range
• Power available on site
WB Equipment can help select the correct tieback test equipment. Call 866-522-5464.
📋 What We Need From You
To quote or recommend equipment, please send:
• Anchor type: strand or bar
• Tendon size and number of strands
• Design load and test load
• Number of anchors to test
• Access and wall details
• Jobsite location and schedule
• Project specifications
Renting Tieback Testing Equipment
WB Equipment rents complete tieback test systems: center-hole jacks from 1 to 2,000 tons, hand or electric pumps, calibrated gauges, load cells and readouts, plus test chairs and the dial gauges needed to measure tendon movement.
Each jack is calibrated with its gauge before it ships, so loads can be read straight from the chart. Equipment is available for the length of your excavation program, with help choosing the jack size and stroke for your anchor design loads.
Where Is Tieback Testing Carried Out?
Tieback and ground anchor tests are required wherever anchors hold back soil or water, including:
● Excavation support: soldier pile and sheet pile walls for basements and deep foundations.
● Permanent retaining walls: highway, rail and building walls.
● Slope stabilization: anchored walls and landslide repairs.
● Waterfront structures: bulkheads, seawalls and dock walls.
● Uplift resistance: anchoring foundations, towers and dams.
Every production anchor is normally proof tested before lock-off, so dependable equipment keeps the work moving.
Your Questions Answered - Tie Back Testing
What is a tieback?
An anchor installed through a retaining wall or excavation support into stable ground, tensioned to hold the wall back.
What is tie back testing?
Loading a tieback with a center-hole jack in steps while measuring elongation, to prove it can carry its design load.
What is the difference between a performance test and a proof test?
A performance test includes load cycles and creep checks on selected anchors. A proof test is a simpler load test on the remaining anchors.
What test load is used?
The engineer sets the test load, commonly about 133% of the design load for proof testing.
What is creep testing?
Holding the test load for a set time and measuring movement, to check the anchor will not lose load over time.
What equipment is needed?
A center-hole jack, jack chair, pump, calibrated gauge, load cell and readout, and a dial indicator.
What center-hole sizes are available?
Center-hole cylinders from ½ in to 15 in to suit strand and bar tendons.
Why use a load cell?
A load cell gives a direct, accurate load reading, and can also be left on anchors for long-term monitoring.
How long must grout cure before testing?
Follow the project specification, which is typically several days depending on grout strength.
What happens after testing?
The anchor is locked off at the specified load using wedges or a bar nut.
Is the equipment calibrated?
Yes. Jacks, gauges and load cells are calibrated in house, traceable to NIST.
Can I rent tieback test equipment?
Yes. Complete tieback test systems are available to rent or buy.
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