At a glance
Key specifications
Measurement basis: JLG 1644 — published performance rating; maximum capacity applies only within the exact attachment, stabilizer and load-chart configuration.
Capacity at the limits
Maximum capacity does not apply at every height or reach. Use the load chart for the machine and attachment.
Overall dimensions
Measurement basis: JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.
Precision visual reference
Dimensions and working range
Published measurements for the stated configuration. Illustration not to scale.
Overall Size
Measurement basis: JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.
Working Range
Measurement basis: JLG 1644 — published performance rating; maximum capacity applies only within the exact attachment, stabilizer and load-chart configuration.
Safety-critical lifting reference: the serial- and configuration-specific manufacturer load chart controls. A headline capacity is not available throughout the working envelope.
Reference details
Overall measurement views reviewed 2026-09-06. Illustrative artwork, not a scale drawing.
Documented model generation; confirm serial/PIN and installed configuration · United States / North American reference
Canonical reference: heavyeq.ca/specs/telehandlers/jlg/1644/ · Printed from HeavyEQ.ca. Confirm the actual machine and current manufacturer documentation before transport or operation.
Year, generation & configuration
Model generation and configuration
- Generation / series
- Current 1644 manufacturer record
- Applicable region
- United States / North American reference
- Year handling
- Confirm the serial/PIN and production year when matching an individual machine to this reference.
Model identity
Model family, generation & status
- Model family
- JLG 1644
- Generation / record
- Current 1644 manufacturer record
- Product status
- Current manufacturer model — status checked September 2026
- Regional scope
- United States / North American reference
No verified lineage relationship published. HeavyEQ reviewed first-party sources and did not force a predecessor or successor from model numbering.
United States / North American reference
Verified specifications
Values retain their cited source, verification status and original publication basis. Imperial is presented first while manufacturer-published dual units and configuration context remain attached to every value.| Specification | Imperial | Metric | Standard / configuration | Source |
|---|---|---|---|---|
| Length — forks excluded | 20 ft 3 in | 6.17 m | JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Width | 8 ft 1 in | 2.46 m | JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Height — stowed | 8 ft 9 in | 2.67 m | JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Ground clearance | 1 ft 7 in | 483 mm | JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Wheelbase | 10 ft 7 in | 3.23 m | JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.Manufacturer verified | JLG |
| Rated Capacity | 15,650 lb | 7,100 kg | JLG 1644 — published performance rating; maximum capacity applies only within the exact attachment, stabilizer and load-chart configuration.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Maximum Lift Height | 43 ft 7 in | 13.28 m | JLG 1644 — published performance rating; maximum capacity applies only within the exact attachment, stabilizer and load-chart configuration.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Maximum Forward Reach | 31 ft 1 in | 9.47 m | JLG 1644 — published performance rating; maximum capacity applies only within the exact attachment, stabilizer and load-chart configuration.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Gross Power Basic | 134 hp | 100 kW | JLG 1644 — published performance rating; maximum capacity applies only within the exact attachment, stabilizer and load-chart configuration.Manufacturer verified | JLG |
| Operating Weight | 33,660 lb | 15,265 kg | 1644 — Official reference build and load-chart configuration.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Load at Max Height | 6,750 lb | 3,062 kg | 1644 — Official reference build and load-chart configuration.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
| Load at Max Reach | 2,000 lb | 907 kg | 1644 — Official reference build and load-chart configuration.Manufacturer verifiedSafety-sensitive value — verify the exact machine. | JLG |
What the specifications mean
The published 1644 values remain attached to their stated configuration and rating basis.
JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted.
An individual machine must be verified by serial/PIN, installed equipment and actual measurements.
Configuration intelligence
Configurations & specification differences
These observations are scoped to the cited generation and region. They are not a list of valid option combinations.
| Record | Verified observation | Scope |
|---|---|---|
| Boom & stabilizers | JLG 1644 — official dimensions diagram, page 2: boom lowered and retracted, standard tires, carriage fitted, forks excluded from length; stabilizers stowed where fitted. | Current 1644 manufacturer recordUnited States / North American reference |
A brochure configuration is not an individual marketplace machine. Serial/PIN and build information are required for exact verification.
Used 1644 inspection priorities
- Inspect boom sections, pads, chains, cylinders and carriage locking components.
- Verify steering modes, frame levelling, stabilizers and load-management systems.
- Match the installed carriage, forks and tires to the applicable load chart.
- Match the 1644 model plate, fitted attachment and undercarriage to the cited reference configuration.
Configuration-aware inspection: these checks are triggered by machine category, installed configuration and technology package. Brochure-listed technology must be physically present, active, licensed and calibrated on the used machine.
Hours, condition and ownership cost
Hours are context, not a condition grade. Duty cycle, idle time, maintenance evidence, wear-system measurements, structural repairs and installed technology should be evaluated together.
Cost drivers to model
- Boom wear, tires, axles, steering and load-management systems shape repair exposure.
- Carriage and attachment choice can alter capacity and the applicable load chart.
- Transport, site ground conditions and inspection requirements belong in the cost plan.
Compatibility graph
Attachment considerations
Relationships below identify relevant classes only unless a stronger evidence state is shown. They never assert exact used-attachment fitment.
Fork carriages and forks
Verify carriage interface, fork class, load chart, load centre.
Open attachment researchBuckets and approved work tools
Verify manufacturer approval, attachment weight, applicable load chart.
Open attachment researchWork platforms
Verify manufacturer authorization, personnel-platform rules, machine controls and load chart.
Open attachment researchBefore confirming fitment
- generation and machine configuration
- mounting interface, coupler or pin geometry
- hydraulic flow, pressure, return and case drain
- attachment weight and machine capacity limits
- electrical controls or required machine options
Model-reference transport profile
Transport reference
Reference measurements retain their configuration and verification status. Confirm the actual transport setup before booking.
Reference specifications can differ from the actual configured machine. Confirm dimensions and weight before booking transportation.
Confirm or replace before a transport request
- actual weight
- actual travel length, width and height
- attachments and removable work tools
- bucket, blade, carriage or boom position
- loading condition
Source provenance
First-party sources and verification notes
Only manufacturer-authored records are linked publicly. Provisional measurements remain marked until a matching first-party record is confirmed.1644 official product record
United States / North American reference · exact model technical page · accessed September 6, 2026 · status: Manufacturer verified
1644 — official technical specifications
United States / North American reference · official technical document · accessed September 6, 2026 · status: Manufacturer verified
