Quick Answer
EFCip Electric Torque Multipliers are inline electric torque multipliers with IP54 protection designed for precision tightening and loosening of heavy-duty fastening connections. They automatically shut off when the preset torque is achieved and provide smooth, continuous, non-impacting rotation. EFCip models feature a built-in controller, brushless motor, universal AC input, and accuracy better than ±5%. Ten models cover an overall range of 52–4,646 lbf.ft (70–6,300 N·m).
Who This Is For
- Manufacturing and assembly operations requiring controlled high torque
- Maintenance technicians
- Field service technicians
- Wind energy assembly and maintenance
- Oil & gas pipeline maintenance
- Oil & gas rig maintenance
- Heavy-duty fastening applications
- Applications where IP54 protection is beneficial
- Applications requiring controlled electric fastening
Mountz specifically identifies EFCip Electric Torque Multipliers for heavy-duty fastening, including windmill gearbox assembly and bolting maintenance on oil & gas pipelines and rigs.
When Should You Use This?
Use an EFCip Electric Torque Multiplier when:
- High-torque fastening is required.
- AC electrical power is available.
- Precision tightening or loosening is required.
- Automatic shut-off at the preset torque is desired.
- Smooth, continuous, non-impacting operation is preferred.
- An inline multiplier configuration is appropriate.
- Additional protection against dampness and spattered water is required.
- A built-in controller is preferred over a separate controller box.
- The required torque falls within the available EFCip torque ranges.
The IP54 protection is the key distinction Mountz identifies for EFCip within its electric multiplier offering.
When Should You NOT Use This?
An EFCip may not be appropriate when:
- Electrical power is unavailable.
- The required torque falls outside the available EFCip range.
- A suitable reaction point cannot be established.
- A right-angle configuration is more appropriate for the fastening location.
- A radial gearing configuration is required for limited-clearance access.
- A different power source is required.
- The operating environment exceeds the protection provided by the tool.
IP54 should not be interpreted as making the tool waterproof or suitable for submersion. Select equipment according to the actual environmental and application requirements.
How EFCip Electric Torque Multipliers Work
EFCip Electric Torque Multipliers operate using an electric, frequency-controlled brush-free synchronized motor. The built-in controller manages the tool's operation without requiring a separate controller box.
During tightening:
- Install the appropriate socket and reaction device.
- Position the socket completely over the fastener.
- Establish a secure reaction point.
- Connect the multiplier to the appropriate AC power supply.
- Select the required torque setting.
- Select the direction of rotation.
- Activate the multiplier.
- The tool runs down the fastener.
- The operating instructions state that shut-off speed is reduced as final torque is approached.
- The multiplier automatically shuts off when the preset torque is achieved.
Result
- Controlled high-torque fastening
- Automatic shut-off at preset torque
- Smooth, continuous rotation
- Non-impacting operation
- Built-in torque control
- No separate controller box required
- IP54 environmental protection
Core Features
- Inline electric torque multiplier
- IP54 protection
- Accuracy better than ±5%
- Automatic shut-off at preset torque
- Smooth, continuous, non-impacting rotation
- Microprocessor controlled
- Built-in controller
- Brushless motor
- Low-maintenance motor design
- Overheat protection
- Universal AC input: 100–253V / 45–66 Hz
- Free-floating or lockable handle
- Standard models with LED display
- Plus models with LC display
- 3/4", 1", and 1 1/2" square drive options
- Reaction foot supplied
EFCip Electric Torque Multiplier Models
Mountz currently documents 10 standard EFCip models, ranging from the EFCip10 through EFCip100.
Available Models
| Model | Item # | American Torque Range | S.I. Torque Range | Square Drive | Speed | Weight |
|---|---|---|---|---|---|---|
| EFCip10 | 210300 | 52–295 lbf.ft | 70–400 N·m | 3/4" | 76 RPM | 19.8 lbs |
| EFCip20 | 210301 | 59–442 lbf.ft | 80–600 N·m | 3/4" | 38 RPM | 19.8 lbs |
| EFCip30 | 210302 | 111–727 lbf.ft | 150–1,000 N·m | 3/4" | 24 RPM | 19.8 lbs |
| EFCip40 | 210303 | 185–1,106 lbf.ft | 250–1,500 N·m | 1" | 15 RPM | 22 lbs |
| EFCip50 | 210304 | 221–1,327 lbf.ft | 300–1,800 N·m | 1" | 13 RPM | 22 lbs |
| EFCip60 | 210305 | 332–1,843 lbf.ft | 450–2,500 N·m | 1" | 12 RPM | 24.2 lbs |
| EFCip70 | 210307 | 443–2,581 lbf.ft | 600–3,500 N·m | 1 1/2" | 9 RPM | 29.1 lbs |
| EFCip80 | 210308 | 590–3,097 lbf.ft | 800–4,200 N·m | 1 1/2" | 7 RPM | 29.1 lbs |
| EFCip90 | 210310 | 738–3,688 lbf.ft | 1,000–5,000 N·m | 1 1/2" | 6 RPM | 38.6 lbs |
| EFCip100 | 210311 | 959–4,646 lbf.ft | 1,300–6,300 N·m | 1 1/2" | 4 RPM | 40.8 lbs |
This corrects the earlier draft, which omitted EFCip40, EFCip50, and EFCip60 and therefore showed only seven models.
Model Selection Guide
| If you need: | Recommended Model |
|---|---|
| Lowest available torque range | EFCip10 |
| Torque up to 295 lbf.ft | EFCip10 |
| Torque up to 442 lbf.ft | EFCip20 |
| Torque up to 727 lbf.ft | EFCip30 |
| Torque up to 1,106 lbf.ft | EFCip40 |
| Torque up to 1,327 lbf.ft | EFCip50 |
| Torque up to 1,843 lbf.ft | EFCip60 |
| Torque up to 2,581 lbf.ft | EFCip70 |
| Torque up to 3,097 lbf.ft | EFCip80 |
| Torque up to 3,688 lbf.ft | EFCip90 |
| Maximum EFCip torque capacity | EFCip100 |
| 3/4" square drive | EFCip10–30 |
| 1" square drive | EFCip40–60 |
| 1 1/2" square drive | EFCip70–100 |
When selecting a model, consider:
- Required fastening torque
- Square drive size
- Operating speed
- Tool dimensions and weight
- Reaction requirements
- Available working space
- Environmental requirements
Select a model whose specified operating range includes the required fastening torque.
Torque Capacity & Operating Speed
| Model | Maximum Torque | Speed |
|---|---|---|
| EFCip10 | 295 lbf.ft | 76 RPM |
| EFCip20 | 442 lbf.ft | 38 RPM |
| EFCip30 | 727 lbf.ft | 24 RPM |
| EFCip40 | 1,106 lbf.ft | 15 RPM |
| EFCip50 | 1,327 lbf.ft | 13 RPM |
| EFCip60 | 1,843 lbf.ft | 12 RPM |
| EFCip70 | 2,581 lbf.ft | 9 RPM |
| EFCip80 | 3,097 lbf.ft | 7 RPM |
| EFCip90 | 3,688 lbf.ft | 6 RPM |
| EFCip100 | 4,646 lbf.ft | 4 RPM |
The EFCip10 has the highest listed operating speed at 76 RPM, while the EFCip100 provides the highest torque capacity at 4,646 lbf.ft.
Standard & Plus Models
Mountz documents both standard and Plus EFCip models.
Standard Models
Standard EFCip models feature an LED display with:
- Preset torque across 19 stages
- Adjustable torque direction
Plus Models
EFCip Plus models feature an LC display that allows:
- Preset torque to be set and displayed
- Rotation angle to be set and displayed
- Torque direction to be adjusted
I would not retain the old article's claims about rotation counting, programmable fastening sequences, or other advanced programming, because the Mountz sources reviewed here specifically support preset torque and rotation angle, but not all of those additional features.
Available Plus Models
| Standard Model | Plus Model | Plus Item # |
|---|---|---|
| EFCip10 | EFCip10 Plus | 210312 |
| EFCip20 | EFCip20 Plus | 210313 |
| EFCip30 | EFCip30 Plus | 210314 |
| EFCip40 | EFCip40 Plus | 210316 |
| EFCip50 | EFCip50 Plus | 210315 |
| EFCip60 | EFCip60 Plus | 210661 |
| EFCip70 | EFCip70 Plus | 210318 |
| EFCip80 | EFCip80 Plus | 210319 |
| EFCip90 | EFCip90 Plus | 210320 |
| EFCip100 | EFCip100 Plus | 210662 |
IP54 Environmental Protection
A defining feature of the EFCip is its IP54 protection. Mountz describes the tools as protected against dampness and spattered water.
This additional protection distinguishes the EFCip from Mountz's standard EF electric multiplier offering.
IP54 does not mean the multiplier is waterproof. Do not interpret the rating as approval for submersion, pressure washing, or operating conditions beyond the tool's documented protection.
Built-In Controller & Brushless Motor
EFCip Electric Torque Multipliers are microprocessor controlled. Mountz states that the tool's speed, frequency, and torque correspond with the built-in controller, eliminating the need for a separate controller box.
The brushless motor design provides:
- Low-maintenance operation
- Integrated electric torque control
The tools also include overheat protection.
Universal Power Input
EFCip models accept:
- 100–253 VAC
- 45–66 Hz
This universal AC input supports operation across compatible international electrical networks.
Always verify the available electrical supply and follow the operating instructions before connecting and operating the tool.
Reaction Device
All EFCip Electric Torque Multipliers are supplied with a reaction foot.
The reaction device absorbs the rotational force generated during fastening.
During setup:
- Install the reaction device securely.
- Establish a stable reaction point.
- Keep the tool properly aligned.
- Keep hands and other body parts clear of the reaction device during operation.
- Inspect the reaction setup before activating the multiplier.
Free-Floating & Lockable Handle
Mountz states that the EFCip handle can free float or lock in a set position.
The appropriate configuration depends on the fastening setup and available working space.
Setup & Operation
Before using an EFCip Electric Torque Multiplier:
- Determine the required fastening torque.
- Select an EFCip model with an appropriate torque range.
- Verify the electrical supply.
- Inspect the multiplier and components.
- Install the appropriate reaction device.
- Install the appropriate socket.
- Connect the tool to power.
- Select the required torque setting.
- Select the direction of rotation.
- Fully engage the socket with the fastener.
- Position the reaction device against a secure reaction point.
- Keep the multiplier properly aligned.
- Activate the tool.
- Allow the multiplier to run down the fastener.
- Allow the tool to automatically stop when the preset torque is achieved.
- Release the reaction device as directed in the operating instructions.
- Disconnect power before changing sockets or components.
Follow the applicable operating instructions for standard or Plus models.
Calibration & Accuracy
EFCip Electric Torque Multipliers provide accuracy better than ±5%.
Follow Mountz calibration, inspection, and service recommendations to maintain proper tool performance.
- Follow your organization's calibration requirements.
- Inspect the multiplier and accessories for damage before use.
- Follow the applicable Mountz operating and service instructions.
- Remove damaged or improperly functioning equipment from service.
This keeps the ±5% accuracy specification, removes the potentially outdated 25-hour and 1,000-hour intervals, and doesn't expose our internal verification process to the customer.
Common Applications
Mountz specifically identifies EFCip Electric Torque Multipliers for:
- Precision tightening of heavy-duty fastening connections
- Precision loosening of heavy-duty fastening connections
- Windmill gearbox assembly
- Oil & gas pipeline bolting maintenance
- Oil & gas rig bolting maintenance
Mountz has also documented an EFCip application involving railroad tie fastening during construction of the Gotthard Base Tunnel.
Common Industries
Based on applications Mountz specifically documents, EFCip Electric Torque Multipliers are applicable to:
- Wind energy
- Oil & gas
- Rail/transportation
The EFCip can also be considered for other heavy-duty fastening applications where its torque range, square drive, inline configuration, reaction requirements, and IP54 protection are appropriate.
Use Cases
Windmill Gearbox Assembly
Problem: Large industrial bolts used in windmill gearbox assemblies require controlled high-torque fastening.
Solution: EFCip Electric Torque Multipliers provide precision electric tightening with automatic shut-off and smooth, continuous rotation.
Oil & Gas Pipeline and Rig Maintenance
Problem: Pipeline and rig maintenance can require precision tightening and loosening of heavy-duty bolting connections.
Solution: Mountz specifically identifies EFCip Electric Torque Multipliers for these bolting maintenance applications.
Railroad Tie Fastening
Problem: A construction project using impact wrenches for railroad tie fastening experienced insufficient torque control and required additional retightening.
Solution: The construction group switched to EFCip Electric Torque Multipliers to provide controlled fastening with continuous rotation and automatic shut-off at the preset torque.
EFCip Compared with Hydraulic & Impact Wrenches
Mountz states that EFCip Electric Torque Multipliers:
- Operate 5–10 times faster than slow-ratcheting hydraulic wrenches
- Are less expensive than hydraulic wrenches
- Provide smooth, continuous, non-impacting rotation
- Eliminate the hammering associated with impact wrenches
These are Mountz's stated product benefits. Tool selection should still be based on the requirements of the specific fastening application rather than assuming one technology is always preferable.
Maintenance
The EFCip's brushless motor is specifically identified by Mountz as providing low-maintenance operation.
For routine care:
- Inspect the tool before use.
- Inspect the power cord and electrical connections.
- Inspect sockets and reaction components.
- Do not operate damaged equipment.
- Disconnect the tool from power before changing components or performing service.
- Follow the applicable Mountz operating and service instructions.
- Follow your organization's calibration requirements.
Compatible Accessories
Reaction Devices
EFCip Electric Torque Multipliers are supplied with a reaction foot. Other reaction devices should only be used when documented as compatible with the specific model and application.
Impact Sockets
Use an appropriately rated socket that:
- Matches the EFCip square drive
- Matches the fastener
- Is suitable for the required torque
- Fully engages the fastener
EFCip models use 3/4-inch, 1-inch, or 1 1/2-inch square drives, depending on the model.
Retention Hardware
Use the appropriate retention hardware for the reaction device and multiplier configuration.
I would leave remote control out of this EFCip article unless Mountz confirms it specifically for EFCip. The current EF pages explicitly advertise remote-control operation, while the EFCip pages reviewed here do not.
Media & Supporting Content
- EFCip Electric Torque Multiplier Product Page
- EFCip Electric Torque Multiplier Data Sheet
- EFCip Electric Torque Multiplier Operating Manual
Related Content
- HG Hand Torque Multipliers
- Pneumatic Torque Multipliers
- Guide: Enhancing Quality in Heavy-Duty Manufacturing and Repair with a Torque Multiplier
- Guide: Choosing the Right Torque Multiplier
- Safeguarding Industrial Operations: The Importance of Torque Tools in Large Asset Maintenance
- Mountz Consolidated Tools Sales Bang Sheet
Need Help?
- Contact Applications Engineering for setup guidance
- Speak with Sales for product selection
- Call us:
- North America:(408) 850-9978
- International: +44 1428 741756
M-F 6am - 5pm PST
