China Crimping Tools Manufacturer

The Electrician's Guide to Battery-Powered Crimping Tools

Cordless hydraulic crimpers have made life easier on job sites, no question. Less muscle work, fewer trips back to the truck, and none of that hassle with hoses getting underfoot. But when crews start evaluating which one to buy, the same concerns come up time and again. Here's the practical lowdown on what to expect from battery life, dies, and size coverage.

How Many Crimps Can a Cordless Battery Crimping Tool Perform on a Single Charge?

Depends. Battery performance is not a fixed number. It changes based on three things: the tools design, the batterys capacity and the wire gauge you are working with. Thick cable uses power from the battery. That is how hydraulics work.

Looking at numbers an 18V tool, from a well-known brand usually gives about 90 connections when working with 600 MCM copper. If you use a 10.8V tool you might get 250 crimps or more. This is if you are using wires.

Plenty of factors influence real-world runtime:

• Conductor size – Pulling a crimp on 600 MCM takes noticeably more energy than doing one on 8 AWG. Expect fewer cycles when you're working large.
• Battery rating – Amp-hour ratings matter. A 5.0Ah pack outlasts a 2.0Ah pack—nothing complicated there.
• Outside temperature – Cold weather saps lithium cells faster than mild conditions.
• Gear condition – A hydraulic system that's overdue for service runs slower and draws more power.

Some recent models include a low-charge lockout: the tool checks remaining capacity before each cycle and refuses to start if it can't finish. That's a genuine timesaver, because partial crimps have to be cut out and redone.

Do Cordless Hydraulic Cable Crimpers Come with Interchangeable Dies, and Are They Metric or AWG Sized?

Nearly all of them do. Interchangeable dies are what make these tools versatile. One power head, multiple die sets—that's the formula.

But here's the catch: die mounting varies by brand. You can't assume a die from one make slides into another. Kits usually ship with a good assortment right out of the box. A 16-ton set, for example, often contains 13 die pairs that cover 8 AWG through 600 MCM.

Sizing conventions come in three flavors:

• AWG – Dominant in the US and Canada. Familiar numbers like 6, 4, 2, 1/0, 2/0.
• MCM – For conductors above 4/0. Starts at 250 and climbs from there.
• mm² – Metric sizing, common on European gear and imported terminals.

Crimp shape matters too. Hexagonal dies are the most common—they squeeze from all six sides and make better contact than the old dimple-style crimpers.

Stick with AWG/MCM if you're working stateside. If your projects involve overseas equipment, look for metric die availability. And note that some lug brands have tighter tolerances than others—check the manufacturer's die recommendations before you buy.

What Size Wires Does a Battery-Operated Hydraulic Crimping Tool Crimp?

Most units on the market start at 8 AWG and reach up to 750 MCM. The heaviest-duty options push past that to 1,500 MCM for copper.

Grouped by capability:

• Compact/micro types (below 5 tons): Manage up to about 300 MCM. Good for control cabinets, panels, and lighter commercial settings.
• Mid-range (12–15 tons): Span 6 AWG to 750 MCM. That's the zone where most contractors operate day to day.
• Full-size (16 tons): Cover 8 AWG through 600 MCM, and sometimes 750 MCM with expanded die offerings.

A standard 16-ton kit includes dies for 8, 6, 4, 2, 1/0, 2/0, 4/0 AWG plus 250, 300, 400, 500, and 600 MCM. That set handles the majority of commercial and industrial terminations you're likely to run into.

How Do I Select the Correct Die Size When Using a Rechargeable Hydraulic Crimping Tool for Copper Lugs?

This is actually where a lot of electricians make mistakes. They are really good at what they do. They still get this part wrong. Here is what you need to do:

• Step 1: Look at the cable. You will see some information printed on the outside of the cable. It will say something like "4 AWG" or "350 MCM". You need to read this information to get started with using your Rechargeable Hydraulic Crimping Tool, for Copper Lugs.
• Step 2: Pick the die with that same marking. Match the number on the die to the number on the wire. The lug barrel dimension is not what you're matching—that's a common mix-up.
• Step 3: Settle on a crimp profile. Hex works for the vast majority of jobs. Go with what your tool's manual suggests.
• Step 4: Verify lug compatibility. Barrel thickness differs across brands. Some suppliers publish die-to-lug cross-reference sheets—keep those handy.
• Step 5: Test one on scrap. Before you crimp the actual connection, run a practice piece. Look for full die closure, no barrel cracking, and proper wire depth.

Frequent errors:

• Reaching for the wrong die shape
• Confusing AWG with MCM notation
• Presuming dies are universally interchangeable

What Is a PEX Pipe Crimping Tool Used For?

A PEX crimping tool is a device that is held in the hand. It is used to push a copper or brass ring around PEX pipe and a fitting, with a barb. This creates a connection that does not leak and lasts a time. The tool spreads pressure evenly around the ring. This makes the ring change shape so it holds the pipe and the fitting tight. When it is done right the connection can take water pressure and temperature changes for years.

How the Crimping Process Works

The process follows a straightforward sequence, though precision matters at every step :

• Cut the PEX tubing squarely using a proper PEX cutter. Burrs or angled cuts can compromise the seal.
• Slide the copper crimp ring over the tubing, positioning it about 1/8 to 1/4 inch from the end.
• Insert the fitting into the tubing until it reaches the fitting shoulder.
• Position the crimping tool jaws squarely over the ring, holding the tool at a 90-degree angle to the fitting.
• Close the handles completely in one smooth motion. Crimping more than once is not recommended—it can weaken the ring and cause leaks.

The Role of the Go/No-Go Gauge

Most quality PEX crimping tools include a Go/No-Go gauge, and it's not just an accessory—it's an essential quality control device . After crimping, you slide the gauge over the crimped ring:

• If the gauge fits over the ring and stops within the "GO" range, the crimp is within specification.
• If the gauge does not fit, the ring is under-crimped.
• If the ring passes all the way through to the "NO-GO" section, the ring is over-crimped.

Either failure means the connection must be cut out and redone with new components. Industry standards like ASTM F1807 specify exact crimp diameter tolerances :